“Goldberg Variations”的意思、由来-开放百科全书

The Goldberg Variations, BWV 988, is a musical composition for harpsichord by Johann Sebastian Bach, consisting of an aria and a set of 30 variations. First published in 1741, the work is one of the most important examples of the variation form. It is named after Johann Gottlieb Goldberg, who may also have been the first performer of the work.

Composition

The tale of how the variations came to be composed comes from an early biography of Bach by Johann Nikolaus Forkel:^[1]

Forkel wrote his biography in 1802, more than 60 years after the events related, and its accuracy has been questioned. The lack of dedication on the title page also makes the tale of the commission unlikely. Goldberg's age at the time of publication (14 years) has also been cited as grounds for doubting Forkel's tale, although it must be said that he was known to be an accomplished keyboardist and sight-reader. {{Harvard citation text|Williams|2001}} contends that the Forkel story is entirely spurious.

Arnold Schering has suggested that the aria on which the variations are based was not written by Bach. More recent scholarly literature (such as the edition by Christoph Wolff) suggests that there is no basis for such doubts.

Publication

Rather unusually for Bach's works,^[2] the Goldberg Variations were published in his own lifetime, in 1741. The publisher was Bach's friend Balthasar Schmid of Nuremberg. Schmid printed the work by making engraved copper plates (rather than using movable type); thus the notes of the first edition are in Schmid's own handwriting. The edition contains various printing errors.^[3]

The term "Clavier Ubung" (nowadays spelled "Klavierübung") had been assigned by Bach to some of his previous keyboard works. Klavierübung part 1 was the six partitas, part 2 the Italian Concerto and French Overture, and part 3 a series of chorale preludes for organ framed by a prelude and fugue in E{{music|flat}} major. Although Bach also called his variations "Klavierübung", he did not specifically designate them as the fourth in this series.^[4]

Nineteen copies of the first edition survive today. Of these, the most valuable is the "Handexemplar", discovered in 1974 in Strasbourg by the French musicologist Olivier Alain and now kept in the Bibliothèque nationale de France, Paris. This copy includes printing corrections made by the composer, and additional music in the form of fourteen canons on the Goldberg ground (see below). The nineteen printed copies provide virtually the only information available to modern editors trying to reconstruct Bach's intent, as the autograph (handwritten) score has not survived. A handwritten copy of just the aria is found in the 1725 Notebook for Anna Magdalena Bach. Christoph Wolff suggests on the basis of handwriting evidence that Anna Magdalena copied the aria from the autograph score around 1740; it appears on two pages previously left blank.

Instrumentation

On the title page, Bach specified that the work was intended for harpsichord. It is widely performed on this instrument today, though there are also a great number of performances on the piano (see Discography below). The piano was rare in Bach's day and there is no indication that Bach would either have approved or disapproved of performing the variations on this instrument.

Bach's specification is, more precisely, a two-manual harpsichord, and he indicated in the score which variations ought to be played using one hand on each manual: Variations 8, 11, 13, 14, 17, 20, 23, 25, 26, 27 and 28 are specified for two manuals, while variations 5, 7 and 29 are specified as playable with either one or two. With greater difficulty, the work can nevertheless be played on a single-manual harpsichord or piano.

Form

After a statement of the aria at the beginning of the piece, there are thirty variations. The variations do not follow the melody of the aria, but rather use its bass line ({{audio|GoldbergVariationsBassLine.mid|Play}}) and chord progression ({{audio|GoldbergVariationsBassLine chords.mid|Play}}). The bass line is notated by Ralph Kirkpatrick in his performing edition^[3] as follows.

The digits above the notes indicate the specified chord in the system of figured bass; where digits are separated by comma, they indicate different options taken in different variations.

Every third variation in the series of 30 is a canon, following an ascending pattern. Thus, variation 3 is a canon at the unison, variation 6 is a canon at the second (the second entry begins the interval of a second above the first), variation 9 is a canon at the third, and so on until variation 27, which is a canon at the ninth. The final variation, instead of being the expected canon in the tenth, is a quodlibet, discussed below.

As Ralph Kirkpatrick has pointed out,^[3] the variations that intervene between the canons are also arranged in a pattern. If we leave aside the initial and final material of the work (specifically, the Aria, the first two variations, the Quodlibet, and the aria da capo), the remaining material is arranged as follows. The variations found just after each canon are genre pieces of various types, among them three Baroque dances (4, 7, 19); a fughetta (10); a French overture (16); two ornate arias for the right hand (13, 25); and others (22, 28). The variations located two after each canon (5, 8, 11, 14, 17, 20, 23, 26, and 29) are what Kirkpatrick calls "arabesques"; they are variations in lively tempo with a great deal of hand-crossing. This ternary pattern—canon, genre piece, arabesque—is repeated a total of nine times, until the Quodlibet breaks the cycle.

All the variations are in G major, apart from variations 15, 21, and 25, which are in G minor.

At the end of the thirty variations, Bach writes Aria da Capo e fine, meaning that the performer is to return to the beginning ("da capo") and play the aria again before concluding.

Aria

The aria is a sarabande in {{music|time|3|4}} time, and features a heavily ornamented melody:

The French style of ornamentation suggests that the ornaments are supposed to be parts of the melody; however, some performers (for example Wilhelm Kempff on piano) omit some or all ornaments and present the aria unadorned.

Williams opines that this is not the theme at all, but actually the first variation (a view emphasising the idea of the work as a chaconne rather than a piece in true variation form).

Variatio 1. a 1 Clav.

This sprightly variation contrasts markedly with the slow, contemplative mood of the theme. The rhythm in the right hand forces the emphasis on the second beat, giving rise to syncopation from bars 1 to 7. Hands cross at bar 13 from the upper register to the lower, bringing back this syncopation for another two bars. In the first two bars of the B part, the rhythm mirrors that of the beginning of the A part, but after this a different idea is introduced.

Williams sees this as a sort of polonaise. The characteristic rhythm in the left hand is also found in Bach's Partita No. 3 for solo violin, in the A{{music|flat}} major prelude from the first book of The Well-Tempered Clavier, and in the D minor prelude of the second book. Heinz Niemüller also mentions the polonaise character of this variation.

Variatio 2. a 1 Clav.

This is a simple three-part contrapuntal piece in {{music|time|2|4}} time, two voices engage in constant motivic interplay over an incessant bass line. Each section has an alternate ending to be played on the first and second repeat.

Variatio 3. Canone all'Unisono. a 1 Clav.

The first of the regular canons, this is a canon at the unison: the follower begins on the same note as the leader, a bar later. As with all canons of the Goldberg Variations (except the 27th variation, canon at the ninth), there is a supporting bass line. The time signature of {{music|time|12|8}} and the many sets of triplets suggest a kind of a simple dance.

Variatio 4. a 1 Clav.

Like the passepied, a Baroque dance movement, this variation is in {{music|time|3|8}} time with a preponderance of quaver rhythms. Bach uses close but not exact imitation: the musical pattern in one part reappears a bar later in another (sometimes inverted).

Variatio 5. a 1 ô vero 2 Clav.

This is the first of the hand-crossing, two-part variations. It is in {{music|time|3|4}} time. A rapid melodic line written predominantly in sixteenth notes is accompanied by another melody with longer note values, which features very wide leaps:

The Italian type of hand-crossing such as is frequently found in the sonatas of Scarlatti is employed here, with one hand constantly moving back and forth between high and low registers while the other hand stays in the middle of the keyboard, playing the fast passages.

Variatio 6. Canone alla Seconda. a 1 Clav.

The sixth variation is a canon at the second: the follower starts a major second higher than the leader. The piece is based on a descending scale and is in {{music|time|3|8}} time. The harpsichordist Ralph Kirkpatrick describes this piece as having "an almost nostalgic tenderness". Each section has an alternate ending to be played on the first and second repeat.

Variatio 7. a 1 ô vero 2 Clav. al tempo di Giga

The variation is in {{music|time|6|8}} meter, suggesting several possible Baroque dances. In 1974, when scholars discovered Bach's own copy of the first printing of the Goldberg Variations, they noted that over this variation Bach had added the heading al tempo di Giga. But the implications of this discovery for modern performance have turned out to be less clear than was at first assumed. In his book The Keyboard Music of J. S. Bach^[5] the scholar and keyboardist David Schulenberg notes that the discovery "surprised twentieth-century commentators who supposed gigues were always fast and fleeting." However, "despite the Italian terminology [giga], this is a [less fleet] French gigue." Indeed, he notes, the dotted rhythmic pattern of this variation (pictured) is very similar to that of the gigue from Bach's second French suite and the gigue of the French Overture. This kind of gigue is known as a "Canary", based on the rhythm of a dance which originated from the Canary islands.

The pianist Angela Hewitt, in the liner notes to her 1999 Hyperion recording, argues that by adding the al tempo di giga notation, Bach was trying to caution against taking too slow a tempo, and thus turning the dance into a forlane or siciliano. She does however argue, like Schulenberg, that it is a French gigue, not an Italian giga and does play it at an unhurried tempo.

Variatio 8. a 2 Clav.

This is another two-part hand-crossing variation, in {{music|time|3|4}} time. The French style of hand-crossing such as is found in the clavier works of Francois Couperin is employed, with both hands playing at the same part of the keyboard, one above the other. This is relatively easy to perform on a two-manual harpsichord, but quite difficult to do on a piano.

Most bars feature either a distinctive pattern of eleven sixteenth notes and a sixteenth rest, or ten sixteenth notes and a single eighth note. Large leaps in the melody occur. Both sections end with descending passages in thirty-second notes.

Variatio 9. Canone alla Terza. a 1 Clav.

This is a canon at the third, in {{music|time|4|4}} time. The supporting bass line is slightly more active than in the previous canons.

Variatio 10. Fughetta. a 1 Clav.

Variation 10 is a four-voice fughetta, with a four-bar subject heavily decorated with ornaments and somewhat reminiscent of the opening aria's melody.

The exposition takes up the whole first section of this variation (pictured). First the subject is stated in the bass, starting on the G below middle C. The answer (in the tenor) enters in bar 5, but it's a tonal answer, so some of the intervals are altered. The soprano voice enters in bar 9, but only keeps the first two bars of the subject intact, changing the rest. The final entry occurs in the alto in bar 13. There is no regular counter-subject in this fugue.

Variatio 11. a 2 Clav.

This is a virtuosic two-part toccata in {{music|time|12|16}} time. Specified for two manuals, it is largely made up of various scale passages, arpeggios and trills, and features much hand-crossing of different kinds.

Variatio 12. a 1 Clav. Canone alla Quarta in moto contrario

This is a canon at the fourth in {{music|time|3|4}} time, of the inverted variety: the follower enters in the second bar in contrary motion to the leader. The follower appears inverted in the second bar.

In the first section, the left hand accompanies with a bass line written out in repeated quarter notes, in bars 1, 2, 3, 5, 6, and 7. This repeated note motif also appears in the first bar of the second section (bar 17, two Ds and a C), and, slightly altered, in bars 22 and 23. In the second section, Bach changes the mood slightly by introducing a few appoggiaturas (bars 19 and 20) and trills (bars 29–30).

Variatio 13. a 2 Clav.

This variation is a slow, gentle and richly decorated sarabande in {{music|time|3|4}} time. Most of the melody is written out using thirty-second notes, and ornamented with a few appoggiaturas (more frequent in the second section) and a few mordents. Throughout the piece, the melody is in one voice, and in bars 16 and 24 an interesting effect is produced by the use of an additional voice. Here are bars 15 and 16, the ending of the first section (bar 24 exhibits a similar pattern):

Variatio 14. a 2 Clav.

This is a rapid two-part hand-crossing toccata in {{music|time|3|4}} time, with many trills and other ornamentation. It is specified for two manuals and features large jumps between registers. Both features (ornaments and leaps in the melody) are apparent from the first bar: the piece begins with a transition from the G two octaves below middle C, with a lower mordent, to the G two octaves above it with a trill with initial turn.

Bach uses a loose inversion motif between the first half and the second half of this variation, "recycling" rhythmic and melodic material, passing material that was in the right hand to the left hand, and loosely (selectively) inverting it.

Contrasting it with Variation 15, Glenn Gould described this variation as "certainly one of the giddiest bits of neo-Scarlatti-ism imaginable."^[6]

Variatio 15. Canone alla Quinta. a 1 Clav.: Andante

This is a canon at the fifth in {{music|time|2|4}} time. Like Variation 12, it is in contrary motion with the leader appearing inverted in the second bar. This is the first of the three variations in G minor, and its melancholic mood contrasts sharply with the playfulness of the previous variation. Pianist Angela Hewitt notes that there is "a wonderful effect at the very end [of this variation]: the hands move away from each other, with the right suspended in mid-air on an open fifth. This gradual fade, leaving us in awe but ready for more, is a fitting end to the first half of the piece."

Glenn Gould said of this variation, "It's the most severe and rigorous and beautiful canon ... the most severe and beautiful that I know, the canon in inversion at the fifth. It's a piece so moving, so anguished—and so uplifting at the same time—that it would not be in any way out of place in the St. Matthew's Passion; matter of fact, I've always thought of Variation 15 as the perfect Good Friday spell."^[6]

Variatio 16. Ouverture. a 1 Clav.

The set of variations can be seen as being divided into two-halves, clearly marked by this grand French overture, commencing with a particularly emphatic opening and closing chords. It consists of a slow prelude with dotted rhythms with a following fugue-like contrapuntal section.

Variatio 17. a 2 Clav.

This variation is another two-part virtuosic toccata. Peter Williams sees echoes of Antonio Vivaldi and Domenico Scarlatti here. Specified for two manuals, the piece features hand-crossing. It is in {{music|time|3|4}} time and usually played at a moderately fast tempo. Rosalyn Tureck is one of the very few performers who recorded slow interpretations of the piece. In making his 1981 re-recording of the Goldberg Variations, Glenn Gould considered playing this variation at a slower tempo, in keeping with the tempo of the preceding variation (Variation 16), but ultimately decided not to because "Variation 17 is one of those rather skittish, slightly empty-headed collections of scales and arpeggios which Bach indulged when he wasn't writing sober and proper things like fugues and canons, and it just seemed to me that there wasn't enough substance to it to warrant such a methodical, deliberate, Germanic tempo."^[6]

Variatio 18. Canone alla Sesta. a 1 Clav.

This is a canon at the sixth in {{music|time|2|2}} time. The canonic interplay in the upper voices features many suspensions. Commenting on the structure of the canons of the Goldberg Variations, Glenn Gould cited this variation as the extreme example of "deliberate duality of motivic emphasis ... the canonic voices are called upon to sustain the passacaille role which is capriciously abandoned by the bass." Nicholas Kenyon calls Variation 18 "an imperious, totally confident movement which must be among the most supremely logical pieces of music ever written, with the strict imitation to the half-bar providing ideal impetus and a sense of climax."^[7]

Variatio 19. a 1 Clav.

This is a dance-like three-part variation in {{music|time|3|8}} time. The same sixteenth note figuration is continuously employed and variously exchanged between each of the three voices. This variation incorporates the rhythmic model of variation 13 (complementary exchange of quarter and sixteenth notes) with variations 1 and 2 (syncopations).^[8]

Variatio 20. a 2 Clav.

This variation is a virtuosic two-part toccata in {{music|time|3|4}} time. Specified for two manuals, it involves rapid hand-crossing. The piece consists mostly of variations on the texture introduced during its first eight bars, where one hand plays a string of eighth notes and the other accompanies by plucking sixteenth notes after each eighth note. To demonstrate this, here are the first two bars of the first section:

Variatio 21. Canone alla Settima

A similar pattern, only a bit more lively, occurs in the bass line in the beginning of the second section, which begins with the opening motif inverted.

Variatio 22. a 1 Clav. alla breve

The ground bass on which the entire set of variations is built is heard perhaps most explicitly in this variation (as well as in the Quodlibet) due to the simplicity of the bass voice.

Variatio 23. a 2 Clav.

This pattern is repeated during bars 5–8, only with the left hand imitating the right one, and the scales are ascending, not descending. We then alternate between hands in short bursts written out in short note values until the last three bars of the first section. The second section starts with this similar alternation in short bursts again, then leads to a dramatic section of alternating thirds between hands. Williams, marvelling at the emotional range of the work, asks: "Can this really be a variation of the same theme that lies behind the adagio no 25?"

Variatio 24. Canone all'Ottava. a 1 Clav.

Variatio 25. a 2 Clav.: Adagio

Variation 25 is the third and last variation in G minor; a three-part piece, it is marked adagio in Bach's own copy^[11] and is in {{music|time|3|4}} time. The melody is written out predominantly in sixteenth and thirty-second notes, with many chromaticisms. This variation generally lasts longer than any other piece of the set.

Variatio 26. a 2 Clav.

Variatio 27. Canone alla Nona. a 2 Clav.

Variatio 28. a 2 Clav.

The second section starts and closes with the contrary motion idea seen in bars 9–12. Most of the closing bars feature trills in one or both hands.

Variatio 29. a 1 ô vero 2 Clav.

Variatio 30. a 1 Clav. Quodlibet

This quodlibet is based on multiple German folk songs,^[12] two of which are Ich bin solang nicht bei dir g'west, ruck her, ruck her ("I have so long been away from you, come closer, come closer") and Kraut und Rüben haben mich vertrieben, hätt mein' Mutter Fleisch gekocht, wär ich länger blieben ("Cabbage and turnips have driven me away, had my mother cooked meat, I'd have opted to stay"). The others have been forgotten.^[13] The Kraut und Rüben theme, under the title of La Capricciosa, had previously been used by Dieterich Buxtehude for his thirty-two partite in G major, BuxWV 250.^[14]

Bach's biographer Forkel explains the Quodlibet by invoking a custom observed at Bach family reunions (Bach's relatives were almost all musicians):

Forkel's anecdote (which is likely to be true, given that he was able to interview Bach's sons), suggests fairly clearly that Bach meant the Quodlibet to be a joke.{{citation needed|date=March 2017}}

Aria da Capo

A note-for-note repeat of the aria at the beginning. Williams writes that the work's "elusive beauty ... is reinforced by this return to the Aria. ... no such return can have a neutral Affekt. Its melody is made to stand out by what has gone on in the last five variations, and it is likely to appear wistful or nostalgic or subdued or resigned or sad, heard on its repeat as something coming to an end, the same notes but now final."

Canons on the Goldberg ground, BWV 1087

When Bach's personal copy of the printed edition of the "Goldberg Variations" (see above) was discovered in 1974, it was found to include an appendix in the form of fourteen canons built on the first eight bass notes from the aria. It is speculated that the number 14 refers to the ordinal values of the letters in the composer's name: B(2) + A(1) + C(3) + H(8) = 14.^[15] Among those canons, the eleventh and the thirteenth are first versions of BWV 1077 and BWV 1076; the latter is included in the famous portrait of Bach painted by Elias Gottlob Haussmann in 1746.^[16]

Transcribed and popularized versions

The Goldberg Variations have been reworked freely by many performers, changing either the instrumentation, the notes, or both. The Italian composer Busoni prepared a greatly altered transcription for piano. According to the art critic Michael Kimmelman, "Busoni shuffled the variations, skipping some, then added his own rather voluptuous coda to create a three-movement structure; each movement has a distinct, arcing shape, and the whole becomes a more tightly organized drama than the original."^[17] Other arrangements include:^[18]

Editions of the score