It may well be doubted whether human ingenuity can construct an enigma of this kind which human ingenuity, if properly applied, may not also resolve.
Edgar Allan Poe
It is no secret Edward Elgar (1857-1934) was captivated by secret codes, riddles, and wordplay. As the respected biographer Michael Kennedy observes, Elgar “…loved puns, acrostics, secret codes and crossword puzzles.” It should come as no surprise the Enigma Variations harbor several ciphers that answer its three core conundrums:
- What is the secret melodic Principal Theme?
- What is the "dark saying" hidden in the Enigma Theme?
- Who is the secret friend portrayed in Variation XIII?
The Enigma Theme contains at least fifty ciphers that furnish specific, mutually reinforcing answers to these enduring questions. The covert melodic Principal Theme is Ein feste Burg (A Mighty Fortress) by Martin Luther. The "dark saying" concealed by the Enigma Theme is a musical Polybius Square cipher (more playfully known as a Music Box Cipher) which encodes a series of phrases that are collectively an anagram of the complete German title Ein feste Burg ist Unser Gott. The secret friend to whom Variation XIII is dedicated is Jesus Christ. In support of this assessment, four integrated ciphers from the Enigma Theme will be described:
- Locks Cipher
- Keys Cipher
- Psalm Cipher
- Music Box Cipher
Ciphers are meant to be decoded, but first they must be found. In the case of the Enigma Variations, an obvious place to search is at the beginning with the oddly constructed Enigma Theme. Its very title suggests a cipher. These opening six measures are of special interest because of an oddly placed double bar at the end of measure 6. In music a double bar typically signals the end of a section, so the placement of one so close to the beginning is conspicuously anomalous. The most promising starting point to uncover a cipher is the Enigma Theme’s opening six measures.
The unusual position of the double bar at the terminus of measure 6 hints at a cipher in these opening measures. An analysis of these six measures revealed the total number of notes performed by each of the four active instrumental parts does not exceed the number of letters in the English alphabet. This feature suggests a rather basic Letter Number Cipher in which the total number of notes for each part is converted into the corresponding letter in the alphabet.
The total notes performed by each instrumental part were counted over the first six measures of the Enigma Theme (Figure 1). Instrumental parts that perform notes over these measures are the first and second violins, violas and cellos – the string quartet. The first violin part has the highest total number at 24 notes. The second violins have the second highest with 17 notes. The violas have the third highest with 15 notes, and the cellos with only 12 notes. This pattern presents an appealing symmetry because the number of notes decreases with each step down in the string choir. The lower the voice, the fewer the notes.
The next step in the decryption required converting these four note totals into corresponding letters from the alphabet (1 = A, 2 = B, 3 = C, etc.). The results of this elementary Letter Number conversion are displayed in Table 1. The plaintext solution is LOQX, a phonetic version of locks. Elgar employed trick spellings in his correspondence, so such a peculiar spelling is not unprecedented.
Why locks? Locks come with keys, and so do ciphers. This decryption indicates multiple ciphers are lurking within the Enigma Theme. When the same note totals are applied to the alphabet in reverse order (i.e., 1 = Z, 2 = Y, 3 = X, etc.), the plaintext result is CJLO. When treated as an anagram, these letters may be reshuffled as LOJC.
Lo is a common biblical term meaning to look, see or behold. Lo is often associated with behold as in the phrase "lo and behold." J.C. are the initials for Elgar’s secret friend, Jesus Christ. These letters are covertly formed by the Roman numerals of his variation (XIII). X represents 10, and J is the tenth letter of the alphabet. III stands for 3, and C is the third letter. LOJC may reasonably be interpreted as Behold Jesus Christ.
Returning to this idea of keys implicated by the LOQX decryption, it is vitally important to recognize the Enigma Theme is performed in two contrasting keys, the minor and major modes of G. The accidentals for these two keys are B-flat and E-flat for G minor, and F-sharp for G major. It is nothing less than extraordinary that this particular set of accidentals furnish the initials (E.F.B.) for the covert Principal Theme, Ein feste Burg by Martin Luther. Consistent with the forward Letter Number decryption of the Locks Cipher, the key signatures of the Enigma Theme literally furnish the keys to unlocking Elgar’s melodic vault.
How can we be certain the initials encoded by the Keys Cipher (E.F.B.) stand for Ein feste Burg? Critical clarifying information is provided by another cipher hidden among the Performance Directions of the Enigma Theme’s opening measure. In that first bar there are seven distinct performance directions: Andante, molto espressivo, Piano, legato e sostenuto. The first letters of these seemingly unremarkable Performance Directions form the ingenious anagram EE’s PSALM. The initials EE evidently stand for the composer himself, Edward Elgar. The word Psalm indicates the book of Psalms in the Old Testament Bible which has a total of 150 chapters. This number presents a numerological parallel with the Enigma Variations which it is comprised of 15 movements, the Enigma Theme followed by fourteen variations.
Since the word psalm is in the singular case, this cipher singles out only one of those chapters. The question remains, which one? The Ternary ABA Structure of the Enigma Theme conveniently encodes the precise number. The opening A Section in G minor is 6 measures followed by the contrasting B section in G major which is 4 measures. Pairing these two numbers together creates the natural number 46. It is truly stunning that Martin Luther drew the title and inspiration for his most epic hymn, Ein feste Burg, from Psalm 46. The Performance Directions Anagram Cipher accurately identifies the book from the Old Testament (Psalms), and the number of measures in the A and B sections of the Ternary structure pinpoint the precise chapter (46). The biblical source of the melodic solution is intimated by Elgar’s use of Old Testament names for Variations VI (Ysobel) and IX (Nimrod).
Armed with the title of the absent Principal Theme, the next step was to find the lock, insert the key, and unlock the contents of Elgar’s mysterious "dark saying." But where was that lock? Where was the location of this mysterious music cipher? The first six measures of the Enigma Theme appeared to be the most obvious place to begin the search due to the odd placement of a double bar at the end of measure 6 (Figure 3).
A double bar is commonly used to denote the end of a movement or a section, but neither was evidently the case here. The Enigma Theme is seventeen measures in length, hence the placement of a double bar so close to the beginning is highly conspicuous. It was reasoned Elgar inserted a double bar in measure 6 to demarcate not the close of a section, but the end of a cipher.
There is an array of preternatural coincidences supporting the hypothesis that the first six measures of the Enigma theme are indeed a music cipher. First, the total number of letters in the title Ein feste Burg ist unser Gott is the same as the number of melody notes played over the first six bars: 24. Second, the number of measures is identical to the number of words in the missing melody’s complete title: 6. Third, there is an audible sense of separation achieved by the systematic placement of quarter note rests in the melody line at the beginning of each bar, a device suggestive of spaces between words. Dr. McClelland perceptively observes:
Elgar’s six-bar phrase is achieved by the characteristic four-note grouping, repeated six times with its reversible rhythm of two quavers and two crotchets. This strongly suggests the cryptological technique of disguising word-lengths in ciphers by arranging letters in regular patterns.
Fourth, the original short score lends compelling circumstantial evidence for a music cipher in the first six bars of the Enigma Theme because the melody and bass notes are in black ink while the intervening notes are in pencil. This presents a highly suggestive parallel with Elgar’s solution to the John Holt Schooling’s Nihilist cipher which was painted on a wooden box with black paint. Fifth, at least three of Elgar’s favorite composers included music ciphers in their scores: J.S. Bach, Robert Schumann, and Franz Liszt. In the unfinished Contrapunctus 14 of Die Kunst der Fuge (The Art of Fugue), Bach inserts his name using the notes B-flat, A, C and B. In the German musical nomenclature, B-flat is represented by B, and B natural by the letter H. In Schumann’s Nordische Lied, he transforms the name of a Danish contemporary, Gade, into a musical motive, and in his Op. 60 fugues, he manipulates the Bach motive using inversion, retrograde, and augmentation.
In The Dream of Gerontius Op. 38, a work completed shortly after the Enigma Variations, Elgar encodes the names of some of his critics in the Demons’ Chorus with a music cipher. Like Schumann’s work for Gade, Elgar composed an Allegretto for the Gedge sisters using the letters of their name as a musical motive. Finally, the original score has the word Enigma centered directly over the first six bars, marking the precise location of the cipher and its ‘dark saying.’ As other researchers point out, the phrase ‘dark saying’ is one of the definitions for enigma. The first word from the covert Principal Theme’s title (Ein) is found in the first three letters of Enigma with its last letter providing the correct translation (A). All the available evidence points to the first six bars of the Enigma Theme as the most likely location of a music cipher. The presence of the Keys and Performance Anagram ciphers only bolsters this suspicion.
To assess the presence of a music cipher, a frequency analysis was first performed on the letters from the complete title of Ein feste Burg ist Unser Gott (Table 4). The results show there is a total of 24 letters with 11 distinct types.
These results were carefully compared with the first 24 notes in the Enigma Theme based on note letters and durations (Table 5).
Extensive experimentation with strict substitution ciphers in which one plaintext letter is matched with each note type yielded no meaningful results. This was an expected outcome because it was also encountered by other researchers. For Elgar to employ such an elementary cipher would be too easy to unravel, so something more sophisticated should be expected. Were there other more complex cipher methods known to Elgar at the time he composed the Enigma Variations?
Eric Sams theorized Robert Schumann learned about an assortment of music ciphers from a book in his father’s bookstore by Ludwig Klübner called Kryptographik (1809). One method Klübner describes is a sophisticated music cipher wheel that encodes single plaintext letters using two note combinations. Schumann was one of Elgar’s favorite composers and was known to employ music ciphers in his works. Recognizing the significance of Klübner’s music cipher wheel, an analysis of melodic note pairs in the Enigma melody was performed. However, this proved just as unproductive as the strict substitution method. Further attempts at decryption using a variety of cipher methods yielded no meaningful results over a three month period. 373 days after I first concluded Ein feste Burg was the covert Principal Theme, I experience an epiphany: Two-note combinations were possible, but it was necessary to consider the melody and bass notes together for the complete cipher. These are the same notes written in black ink on the original short score – Elgar’s ‘dark saying.’
The coupling of melody and bass notes was strongly suggested by Elgar’s use of six note letters in the melody (i.e., a, b, c, d, f & g), and six in the bass (a, b, c, d, e & g). Together the melody and bass lines employ all seven note letters with the only discrepancy between E and F. Later analysis revealed these notes were combined just as i and j or u and v are conflated when enciphering entire alphabetical sequences. Robert Schumann (one of Elgar’s ‘ideal’ composers) used the notes E and F in his music ciphers to symbolize his alter egos, Eusebius and Florestan.  With the conflation of the notes E and F, one distinct melody note may be assigned to each column and one discrete bass note to each row. This arrangement produces a 6 x 6 checkerboard configuration. By pairing a melody note with a bass note, a single cell in the checkerboard grid is designated at their intersection containing a plaintext letter solution.
There is yet another basis to suspect Elgar constructed a 6 x 6 checkerboard cipher because there are precisely six different 6-letter names and titles used in the Enigma Variations:
- Enigma for the Theme
- Ysobel for Variation VI
- Troyte for Variation VII
- Nimrod for Variation IX
- Eduard from the initials E.D.U. assigned to Variation XIV which are the first three letters of the German translation of Edward
- Finale, the subtitle for Variation XIV
The next step in the decryption process was to map out the bass/melody note pairs in the first six bars of Enigma Theme and compare them with the letter frequencies of Ein feste Burg (Table 6). For the purpose of identifying note pairings, each bass quarter note was treated as a half note. These bass line extensions from the original quarter notes are justified based on the recapitulation of the opening six bars in measures 11 through 16 where they are played continuously as half notes (Figure 1). Bass notes not sounding continuously but implied by this analysis are shown in parentheses. In hindsight, Elgar’s decision to limit the majority of the bass notes to quarter notes in the opening six bars appears to be a stratagem for obscuring the cipher.
Unmistakable correlations were found between bass/melody note pairings and plaintext letter frequencies (Table 7). Discernable bass-melody note pairings were easily identified for letters with frequencies of 4 (e and t), 3 (s), and in three cases with letters with frequencies of 2 (g, i, n, r and u). The remaining two bass/melody pairings for letters with frequencies of 2 were not immediately apparent. The first to be paired were B-flat/G and D/B-flat because together they form a G minor triad, the opening chord of the Enigma Theme. Also, they share a common note in reverse positions (B-flat). The final match pair was found to be A/C and E-flat/A because of the shared note in reverse positions (A) as was the case with the previous pairing. A more nuanced explanation is the letters A, C and E are the initials for the first names of Elgar, his wife, and daughter. Like the previous match pair, these notes form a music triad. The remaining three bass/melody pairs (B/F, E-flat/G, and E-flat/B-flat) were assigned to letters with single frequencies (b, f, and o).
After testing all possible plaintext letter solutions restricted by bass/melody note frequency pairings over the first 6 bars of the Enigma Theme, an outcome that can only be described as extraordinary is realized (Table 8).
Measure 1: GSUS
In measure 1 the plaintext solution is gsus, a phonetic spelling for Jesus. This special friend according to Elgar’s Roman Catholic faith is the hidden dedicatee for Variation XIII. His initials are ingeniously encoded by the Roman numerals for this movement. X represents the number ten, and the tenth letter of the alphabet is J. III stands for the number three, and the third letter in the alphabet is C. When the Roman numerals XIII are converted into letters using this Letter Number cipher method, the initials J.C. are realized. The efficacy of this cipher is demonstrated by Variation IX (Nimrod) dedicated to Elgar’s German friend, August Jaeger. Applying the same Letter Number encryption method to the Roman Numerals IX produces the initials A.J.
Richard Santa discovered Elgar encoded Pi in the opening measure of the Enigma Theme. Pi is a mathematical constant describing the ratio of any circle’s circumference and its diameter. In his groundbreaking research, Santa observed the first four notes of the Enigma Theme sequentially approximate the number Pi using the scale degrees (i.e., B flat = 3, G = 1, C = 4, A = 2). The pairing of Pi with Jesus in the first measure of the Enigma Theme intimates the phrase “Pie Jesu” (Pious Jesus), a phrase from the final couplet of the Dies Irae, a hymn in the Roman Catholic Requiem Mass.
Measure 2: GRTS
In measure 2 the plaintext solution is grts, the phonetic spelling of the Latin words gratus, gratis, and gratias. In his youth Elgar attended three Catholic schools where he received extensive instruction in Latin, so he was very familiar with this academic and liturgical language. According to Cassell’s Latin Dictionary, gratus means “pleasing, welcome, agreeable” and “loved.” A Copious and Critical English-Latin Dictionary first published in 1871 and still in use when Elgar composed the Enigma Variations defines gratus as “beloved” and “favorite.” The terms “beloved” and “pleasing” are used in reference to Jesus after his baptism when a voice from heaven said, “You are my beloved Son; with you I am well pleased.”
An alternative realization of the plaintext grts is the Latin word for grace – gratis. As an adverb, it is defined as “without recompense, for nothing, gratis.” As a noun gratis means “thanks” or “thanksgiving,” especially to a deity. The phrase “Jesus Gratias” means “Thanks be to Jesus,” and closely mirrors a phrase from the Latin mass “Deo Gratias” which means “Thanks be to God.” The alternative spelling gratias appears in the Ordinary of the Latin Mass in the seventh sentence of the Gloria as, “Gratias agimus tibi propter magnam gloriam tuam” (We give thee thanks for thy great glory). Following the first measure’s reference to Jesus, the appearance of the Latin words for beloved, thanksgiving, and grace are theologically elegant and compelling. In the Christian canon, Jesus is described as beloved and pleasing to God, serving as the supreme example of divine grace. This message is made plain in the book of Ephesians, “For it is by grace you have been saved, through faith—and this not from yourselves, it is the gift of God— not by works, so that no one can boast.”
Measures 3 and 4: INOU BETR
In measure 3 the plaintext solution is inou, a phonetic rendering of the phrase “I know you.” In measure 4 the plaintext solution is betr, a phonetic version of the word “better.” Combining the plaintext results for measures three and four generates the phrase “I know you better.” The formation of a meaningful phrase based on the plaintext solutions from bars 3 and 4 (“I know you better”) mirrors the pattern of producing a cogent phrase from the plaintext results from measures one and two (“Jesus Gratias” translated as “Thanks be to Jesus”). Following the plaintext results from measures 1 and 2 citing Jesus and some of his attributes, the phrase implies Elgar knows Jesus better. But what possible explanation is there for why Elgar would encode such a declaration?
Almost five months before Elgar began openly working on the Enigma Variations, Secondo Pia took the first official photographs of the Turin Shroud. Taken on May 28, 1898, Pia's photographic negative vividly revealed for the first time the crucified body and face of a man many fervently believe to be Jesus Christ. It quickly became an international sensation, deluging the pages of both the secular and religious press. Copies of that striking image were soon shared and revered among Roman Catholics around the globe. For the first time, many beheld the face of their Lord and Savior.
For a Roman Catholic like Elgar, the phrase “I know you better” conveys their view of the Holy Shroud’s significance and meaning. Elgar said if the Enigma Theme were presented as a ballet, the Enigma should be represented by a veiled dancer in a banquet hall. Like a shroud, a veil a cloth used to cover the body. Shortly before his crucifixion, Jesus met with his twelve disciples in a banquet hall to celebrate the Last Super. Excluding Elgar and his wife, there are twelve friends portrayed in the Variations. None of these theological allusions could ever be expected to register in a secular scholar’s worldview. In contrast, Elgar’s weltanschauung at the time he composed the Enigma Variations was decidedly Roman Catholic.
Measure 5: TENI
The plain text solution for measure five is teni. Popular biblical commentaries during Elgar's lifetime explain that when Jesus asked the Samaritan woman at the well for a drink of water, he began his request with that exact word by saying, "Teni li listosh." The word teni is indelibly linked to Jesus' encounter with the Samaritan woman at the well when he plainly revealed his identity to her as the Messiah. In view of the plain text results in measures 1 through 4 referring to Jesus, the theological context of teni is undoubtedly what Elgar intended. His personal library contained as many as 100 religious texts including Bibles, theological works and biblical commentaries, so Elgar was well versed in theology. In what language is the word Teni? Multiple commentaries available during the 1890s claim that Jesus spoke to the Samaritan woman in Aramaic. For instance, The Pulpit Commentaries dating from 1897 states:
The Samaritan woman therefore saith to him, How is it (compare this "how" with that of Nicodemus. Jesus had at once provoked inquiry, which he was not unwilling to gratify)—How is it that thou, being a Jew? She would have known that he was a Jew by his speech, for the Samaritans were accustomed to turn the sound of sh into that of s; and so, when Jesus said in Jewish Aramaic, Teni lishekoth, "Give me to drink," while she would herself have said, Teni lisekoth, his speech would betray him.
Another example occurs in The Preacher's Complete Homiletical Commentary on St. John dating from 1892 which also claims the word Teni is Aramaic:
The woman knew He was a Jew probably by His dress, but it may be also by His accent. It has been pointed out that the words of the question asked by Jesus in Aramaic would be תני לי לשׁחת (Teni li lish'ḥoth), whereas the woman would have said לשׂחת (lis'ḥoth) (vide Jud 12:5-6).
While these and other commentaries of his era would have reasonably lead Elgar to believe the word Teni is Aramaic, it is actually Hebrew. Charles C. Torrey of Yale University lays out a compelling case that the Gospel of John was originally written in Aramaic, the vernacular of Judea in the first century. Indeed, it is well established that Jesus and his disciples spoke primarily Aramaic. For this explicit reason, the commentaries correctly report that Jesus conversed with the Samaritan woman in Aramaic. However, the translation provided was mistakenly in Hebrew, a language very similar to Aramaic. The correct version from the Aramaic Peshitta is, "Hav li maya, eshteh," which translates as, "Give me water, I will drink."
Measure 6: FETE
In Measure 6 the plaintext solution is fete, a word defined as a lavish party or religious festival. In light of the coded reference to Jesus in measure 1, the latter definition involving a religious context is warranted. The use of phonetic spellings is a diabolically difficult device that vastly complicates decryption, particularly when done with multiple languages encoded in the same message. Elgar’s personal correspondence is rife with trick spellings as Eric Sams meticulously mentions with “excuse” spelled as “xqqq”, and “score” as “ckor”, “skore”, “skorh”, “skowre”, “skourrghe”, “csquorr”, “skourghowore”, and “ssczowoughohr”. Even if such a cipher were compromised, the outcome would still not easily reveal the title of the missing melody since it is anagrammatized. The enigma is multilayered because the solution letters must still be rearranged to spell out the correct solution: Ein feste Burg ist Unser Gott.
Akin to the four sides of a box cipher key or four instruments in a string quartet, there are four languages employed in Elgar’s Music Box Cipher: English, Latin, German and what Elgar would have reasonably believed was Aramaic. Similar to the Performance Directions Anagram Cipher in which Elgar encodes his initials (E.E.), the first letters of these cipher languages spell out his last name:
Elgar stealthily signed his cipher so it could be independently authenticated as genuine and correct. The phonetically spelled words and phrases from Elgar’s "dark saying" are an elaborate anagram sourced from the title of the unstated Principal Theme, Ein feste Burg ist unser Gott. Such an incredible outcome could only be the result of a deliberate, premeditated plan, one far beyond my powers of invention. To suggest any other explanation, particularly one devoid of forethought and careful planning by Elgar, would be beyond absurd.
The Enigma Theme Music Box Cipher key is summarized in Table 10. It consists of a 6 x 6 checkerboard, an intriguing outcome when one realizes the opus number for the Enigma Variations is 36, the product of 6 times 6. Plaintext letters are shown while null cells contain only asterisks. To find a solution letter, locate the intersection of the melody and bass notes as outlined in Table 8. For instance, the combination of the melody note A with the bass note C yields the plaintext letter t. Given the size of the grid, multiple pairings are possible for the same letter, furnishing another effective means to confuse attempts at unraveling the cipher. It should be emphasized Elgar did not provide homophones for the letter e, but did so for letters typically having lower frequencies such as g and s. This practice is also another proven method for sowing confusion and defeating attempts at cracking a cipher. That Elgar closely studied an allegedly unbreakable Nihilist cipher in the 1896 series of The Pall Mall Magazine – two years before he composed the Enigma Variations and one year before he created the Dorabella Cipher. Mathematician Tim S. Roberts successfully cracked the Dorabella Cipher in 2009, confirming Elgar’s use of multiple languages and phonetic spellings.
There was a far more compelling reason to suspect Elgar was inspired to create a musical Polybius square, although I was unaware of it until only after my discovery of his Music Box Cipher. In his personal library are four articles from the 1896 edition of The Pall Mall Gazette titled Secrets in Cipher. These papers are now in possession of the Elgar Birthplace Museum. The third article contains a music cipher from the era of George II showing how 12 quarter notes and 12 eighth notes were used to encipher 24 letters of the English alphabet. In a remarkable parallel, Elgar employs exactly 12 quarter notes and 12 eighth notes in the first six bars of the Enigma Theme. The fourth article presents an allegedly insoluble Nihilist cipher Elgar reports solving in his 1905 biography. The Nihilist cipher is a variant of the Polybius square which in some versions uses a 6 x 6 grid “…to accommodate the 35 letters of the old Russian alphabet.” The suspicion Elgar devised a 6 x 6 checkerboard cipher was bolstered retroactively by the revelation of these articles from The Pall Mall Gazette. David Kahn reports the ancient Greek Polybius originally invented the checkerboard as a signaling method to relay messages over long distances at night using torches. Elgar’s cryptic reference to a ‘dark saying’ takes on a whole new light in this context. The Polybius square is a very old cipher, one Elgar knew intimately from his personal studies.
Elgar did indeed write down the solution to his Enigma Variations while he was very much alive, accomplishing this feat in the opening six bars of the Enigma Theme utilizing an ingenious Music Box Cipher. With the answer hidden in plain sight, Elgar evokes the words of Jesus who asked his disciples, “Do you have eyes but fail to see, and ears but fail to hear?” For over a century the solution has been seen and heard countless times, yet ironically those with eyes and ears failed to recognize it. Such is the pinnacle of the art of cryptography, a discipline Elgar found irresistible throughout his life. Now we know the secret he ostensibly took to his grave.
Four Integrated Ciphers
The preceding descriptions and decryptions of four ciphers nestled in the opening measures of the Enigma Theme demonstrate they are integrative with a complimentary and mutually reinforcing set of answers. When decoded forwards using an elementary Letter Number conversion key, the Locks Cipher from the Enigma Theme’s opening six measures indicates that multiple keys are required to unlock the secrets of the Enigma Variations. Applying this insight to the actual keys in which the Enigma Theme is performed, it was determined the letters for the accidentals of the G minor and major modes are E.F.B. This is a remarkable find because those initials are an exact match for the famous Reformation hymn Ein feste Burg.
The Performance Directions Cipher in the Enigma Theme’s first measure encodes the composer’s initials (E.E.) with the word Psalm. This coded message suggests one out of a possible 150 chapters from the Old Testament Book of Psalms. The Ternary structure of the Enigma Theme cleverly provides a solution culled from the total number of measures for the A and B sections which are 6 and 4 respectively. Pairing these two digits in reverse order produces 46. The title for Ein feste Burg comes from the first line of Psalm 46. In the second stanza of that epic hymn, the name of Elgar’s secret friend is cited.
When decoded backward using the Letter Number conversion key, the Locks Cipher provides the initials for Jesus Christ (J.C.) with the word lo, biblical shorthand for behold. The Locks Cipher reveals how to obtain the initials for the unstated Principal Theme from the keys in which the Enigma Theme is played, and it also encodes the initials for the secret friend portrayed in Variation XIII. The lyrics from the hidden Principal Theme provide only one name, Jesus Christ, which is an exact match with the Locks Cipher decryption.
These relatively basic Enigma Theme ciphers implicate Ein feste Burg as the covert Principal Theme. This melodic solution accounts for the seemingly anomalous Mendelssohn fragments quoted in Variation XIII since Mendelssohn quotes Ein feste Burg in his first extended symphonic work, the Reformation Symphony. By quoting Mendelssohn, Elgar subtly suggests by inversion (a common contrapuntal technique) that Mendelssohn also quotes the same Principal Theme in one of his own works. The number of Mendelssohn fragments – four – cleverly specifies the correct movement from the Reformation Symphony that cites Ein feste Burg – the fourth. The Roman numerals for that movement are in fact a simple Letter Number Cipher that encodes the initials J.C. X represents the number ten, and the tenth letter of the alphabet is J. III stands for the number three, and the third letter of the alphabet is C. These are the identical initials encoded by the Locks Cipher, a variant of the Letter Number Cipher in which the number of notes from each active orchestral part serves as the key.
The most complex and compelling cryptogram in the Enigma Theme is the Music Box Cipher. Through an elegant anagram it encodes the entire 24 letter title of Ein feste Burg ist Unser Gott. Elgar explained in the original 1899 program note the Enigma contains a "dark saying," and this is born out by the realization the hidden theme’s title as well as its anagrammatized plaintext consists of multiple phrases or sayings. Similar to the Performance Direction Anagram Cipher which encodes Elgar’s initials, the first letters of the four languages used in the Music Box Cipher cleverly encode his last name – English, Latin, German, Aramaic. As a stealth form of authentication, the composer ingeniously encodes his initials in the Performance Directions Anagram Cipher and his last name in the Music Box Cipher. Like a consummate artist, Elgar meticulously initialed and signed his work. A phonetic version of the secret friend’s first name (GSUS) is encoded in the first measure. This name Jesus is cited in the second stanza of Ein feste Burg, and his initials (J.C.) are encoded by the Locks Cipher. With so many ciphers encoding the same set of answers, we may be exceedingly confident the solutions are accurate and authentic. To learn more about the secrets of the Enigma Variations, read my free eBook Elgar’s Enigmas Exposed.
 Kennedy, Michael. The Life of Elgar (Musical Lives). illustrated edition ed. New York: Cambridge University Press, 2004, p. 68
 McClelland, C. (2007, Winter). Shadows of the evening: new light on Elgar's 'dark saying'. Music Times, Winter, p. 44.
 London British Library Add. MS 58003, f.2v.
 Daverio, J. (2008). Crossing Paths: Schubert, Schumann, and Brahms. New York: Oxford University Press, USA, p. 101.
 McVeagh, D. (2007). Elgar the Music Maker. Rochester, NY: Boydell Press, p. 3.
 Turner, Patrick. Elgar's 'Enigma' Variations - a Centenary Celebration. London: Thames Publishing, 1999, p. 46
 Sams, Eric. Did Schumann use ciphers? London, The Music Times, Aug., (1965), p. 584-591
 Daverio, John. Crossing Paths: Schubert, Schumann, and Brahms. New York: Oxford University Press, USA, 2008, p. 83.
 Dowley, T. (1982). Schumann: His Life and Times. Neptune City, NJ: Paganiniana Publications, Inc., p. 46-47.
 Cassell's Latin Dictionary (5th ed.). (2000). New York: Continuum, p. 268
 Hall, W., & Smith, T. (1871). A Copious and Critical English-Latin Dictionary. New York: American Book Co., p.
 English Standard Version
 Cassell's Latin Dictionary (5th ed.). (2000). New York: Continuum, p. 267-268.
 Randel, D. M. (1986). The New Harvard Dictionary of Music (Harvard University Press Reference Library). Cambridge: Belknap Press, pp. 471-472
 Ephesians 2:8-9 NIV
 Cited from an unpublished paper by Eric Sams entitled Elgar’s Cipher Table (1970-71).
 Buckley, Robert J. Sir Edward Elgar (1905). New York: Kessinger Publishing, Llc, 2009, p. 41.
 Kahn, David. The Code Breakers. New York: The Macmillan Company, 1968, p. 620.
 Ibid, p. 83.
 Mark 8:18 (NIV)