Orgelbüchlein


The Orgelbüchlein BWV 599−644 is a set of 46 chorale preludes for organ – one of them is given in two versions – by Johann Sebastian Bach. All but three were written between 1708 and 1717 when Bach served as organist to the ducal court in Weimar; the remainder and a short two-bar fragment came no earlier than 1726, after the composer’s appointment as cantor at the Thomasschule in Leipzig.
Bach's apparent plan was for a collection of 164 settings of chorale tunes sung during the Church year so that each part of the year was represented. However, only 46 of these were completed. The manuscript, which is now in the Staatsbibliothek, leaves a number of tunes as missing or "ghost" pieces. A project to complete the missing chorales called "The Orgelbüchlein Project" has been launched in the 21st century, where the chorales are written in modern styles. This project took nine hours in the first complete performance, giving an idea of the potential scope of Bach's "little" book. The Orgelbüchlein as Bach left it contains about 80 minutes of music which span the liturgical calendar.
Each setting takes a Lutheran chorale, adds a motivic accompaniment, and quite freely explores form. Many of the preludes are short and use four contrapuntal voices. All have a pedal part, some requiring only a single keyboard and pedal, with an unadorned cantus firmus. Others involve two keyboards and pedal. These include several canons, four ornamental four-part preludes with elaborately decorated chorale lines, and one prelude in trio sonata form.

Title page

Orgel-Büchlein
Worrine einem anfahenden Organisten
Anleitung gegeben wird, auff allerhand
Arth einen Choral durchzuführen, an-
bey auch sich im Pedal studio zu habi-
litiren, indem in solchen darinne
befindlichen Choralen das Pedal
gantz obligat tractiret wird.
Dem Höchsten Gott allein' zu Ehren,
Dem Nechsten, draus sich zu belehren.
Autore
Joanne Sebast. Bach
p. t. Capellae Magistri
S. P. R. Anhaltini-
Cotheniensis.

Little Organ Book
In which a beginning organist
receives given instruction as to performing
a chorale in a multitude of ways while
achieving mastery in the study of the pedal,
since in the chorales contained herein
the pedal is treated entirely obbligato.
In honour of our Lord alone
That my fellow man his skill may hone.
Composed by
Johann Sebastian Bach
Capellmeister
to his Serene Highness the Prince of Anhalt-
Cöthen

History

Bach's formal training as a musician started when he was enrolled as a chorister at the Michaelskirche in Lüneburg in 1700-1702. Manuscripts in Bach's hand recently discovered in Weimar by the Bach scholars Peter Wollny and Michael Maul show that while in Lüneburg he studied the organ with Georg Böhm, composer and organist at the Johanniskirche. The documents are hand copies made in Böhm's home in tablature format of organ compositions by Reincken, Buxtehude and others. They indicate that already at the age of 15 Bach was an accomplished organist, playing some of the most demanding repertoire of the period. After a brief spell in Weimar as court musician in the chapel of Johann Ernst, Duke of Saxe-Weimar, Bach was appointed as organist at St. Boniface's Church in Arnstadt in the summer of 1703, having inspected and reported on the organ there earlier in the year. In 1705-1706 he was granted leave from Arnstadt to study with the organist and composer Dieterich Buxtehude in Lübeck, a pilgrimage he famously made on foot. In 1707 Bach became organist at St. Blasius' Church in Mühlhausen, before his second appointment at the court in Weimar in 1708 as concertmaster and organist, where he remained until 1717.
During the period before his return to Weimar, Bach had composed a set of 31 chorale preludes: these were discovered independently by Christoph Wolff and Wilhelm Krunbach in the library of Yale University in the mid-1980s and first published as Das Arnstadter Orgelbuch. They form part of a larger collection of organ music compiled in the 1790s by the organist Johann Gottfried Neumeister and are now referred to as the Neumeister Chorales BWV 1090-1120. These chorale preludes are all short, either in variation form or fughettas. Only a few other organ works based on chorales can be dated with any certainty to this period. These include the chorale partitas BWV 766-768 and 770, all sets of variations on a given chorale.
During his time as organist at Arnstadt, Bach was upbraided in 1706 by the Arnstadt Consistory "for having hitherto introduced sundry curious embellishments in the chorales and mingled many strange notes in them, with the result that the congregation has been confused." The type of chorale prelude to which this refers, often called the "Arnstadt type", were used to accompany the congregation with modulating improvisatory sections between the verses: examples that are presumed to be of this form include BWV 715, 722, 726, 729, 732 and 738. The earliest surviving autograph manuscript of a chorale prelude is BWV 739, Wie schön leuchtet der Morgenstern, based on an Epiphany hymn. It dates from 1705 and possibly was prepared for Bach's visit to Lübeck.

Purpose

Compositional style

Although there are a few important departures, the chorale preludes of the Orgelbüchlein were composed with a number of common stylistic features, which characterise and distinguish the so-called "Orgelbüchlein style:"
  • They are harmonisations of a cantus firmus which is taken by the soprano voice.
  • They are in four parts, with three accompanying voices.
  • The harmonies are filled out in the accompanying voices by motifs or figures derived from the cantus and written imitatively.
  • They begin directly with the cantus, either with or without accompaniment.
  • There are no breaks between the lines of the cantus for ritornellos or interludes in the accompanying voices.
  • The notes ending verse lines in the cantus are marked by fermata.
Exceptions include:
  • BWV 611, Christum wir sollen loben schon, where the cantus is in the alto voice
  • BWV 600, 608, 618, 619, 620, 624, 629 and 633/634 where the soprano cantus is in canon with another voice.
  • BWV 615, In dir ist Freude, where the cantus is heard in canon in all the voices over the accompanying motifs.
  • BWV 599, Nun komm, der Heiden Heiland, and BWV 619, Christe du Lamm Gottes, which are written for five voices.
  • BWV 639, Ich ruf' zu dir, Herr Jesu Christ, which is written for three voices.
  • BWV 617, 618, 619 and 637, where the accompaniment starts before the cantus.

    Chorale Preludes BWV 599–644

Advent BWV 599–602

  • BWV 599 Nun komm, der Heiden Heiland
File:Enchiridion geistlicher Gesänge 35.jpg|thumb|The melody and words of "Nun komm, der Heiden Heiland" from the Erfurt Enchiridion, 1524
Below is the first verse of Luther's advent hymn "Nun komm, der Heiden Heiland" with the translation in English of George MacDonald.
Although it has often been suggested that this opening advent chorale prelude resembles a French overture, in construction, with its texture of arpeggiated chords, it is more similar to the baroque keyboard preludes of German and French masters, such as Couperin. The accompanying motif in the lower three or sometimes four parts is derived from a suspirans in the melodic line, formed of a semiquaver rest—a "breath"—followed by three semiquavers and a longer fourth note. Some commentators have seen this falling figure as representing a descent to earth, but it could equally well reflect a repetition of the words "Nun komm" in the text. The suspirans is made up of intervals of a rising second, a falling fourth following by yet another rising second. It is derived from the first line of the melody of the cantus firmus and often shared out freely between voices in the accompaniment. The mystery of the coming of the Saviour is reflected by the somewhat hidden cantus firmus, over harmonies constantly reinventing themselves. It is less predictable and regular than other settings of the same hymn by Bach or predecessors like Buxtehude, only the second and third lines having any regularity. The last line repeats the first but with the suspirans suppressed and the dotted rhythms of the bass replaced by a long pedal note, possibly reflecting the wonder described in the third and fourth lines of the first verse.
  • BWV 600 Gott, durch deine Güte
File:St-John-the-Baptist-Mariawald-Abbey.jpg|thumb|St John the Baptist with the Lamb of God, early 16C stained glass from Mariawald Abbey near Cologne
Below is the first of three verses of Johann Spannenberg's advent hymn with the translation in English of Charles Sanford Terry.
It is set to the same melody as Johann Roh's advent hymn Gottes Sohn ist kommen, the first verse of which is given here with the English translation of Catherine Winkworth.
This chorale prelude is a canon at the octave in the soprano and tenor voices, with the tenor entering one bar after the soprano. The stops for the canonic parts were explicitly marked by Bach in the autograph score, with the high tenor part in the pedal, written at the pitch Bach intended and also within the compass of the Weimar organ. Bach left no indication that the manualiter parts were to be played on two keyboards: indeed, as points out, the autograph score brackets all the keyboard parts together; in addition technically at certain points the keyboard parts have to be shared between the two hands. The accompaniment is a skillful and harmonious moto perpetuo in the alto and bass keyboard parts with flowing quavers in the alto, derived from the first four quaver suspirans figure, played above a walking bass in detached crotchets. The hymn was originally written in duple time but, to facilitate the canonic counterpoint, Bach adopted triple time with a minim beat, at half the speed of the bass. The bass accompaniment at first is derived directly from the melody; during the pauses in the soprano part, a second motif recurs. The continuous accompaniment in quavers and crotchets is an example of the first of two types of joy motif described by, used to convey "direct and naive joy." In the words of Albert Riemenschneider, "the exuberance of the passage work indicates a joyous background."
  • BWV 601 Herr Christ, der einge Gottes-Sohn
Below are the first and last verses of Elisabeth Cruciger's hymn for Epiphany Herr Christ, der einig Gotts Sohn with the English translation of Myles Coverdale.
The same melody was used in the postprandial grace Herr Gott, nun sei gepreiset, the first verse of which is given below with the English translation of Charles Sanford Terry.
According to the chronology of, this chorale prelude was probably the first to be entered by Bach in the autograph manuscript. Already it shows with beguiling simplicity all the features typical of the Orgelbüchlein preludes. The cantus firmus is presented unadorned in the soprano line with the other three voices on the same keyboard and in the pedal. The accompaniment is derived from the suspirans pedal motif of three semiquavers followed by two quavers. For this particular motif signified "beatific joy", representing either "intimate gladness or blissful adoration." Although the chorale prelude cannot be precisely matched to the words of either hymn, the mood expressed is in keeping both with joy for the coming of Christ and gratitude for the bountifulness of God. The motif, which is anticipated and echoed in the seamlessly interwoven inner parts, was already common in chorale preludes of the period. Easy to play with alternating feet, it figured in particular in the preludes of Buxtehude and Böhm as well as an earlier manualiter setting of the same hymn by Bach's cousin, Johann Gottfried Walther. Bach, however, goes beyond the previous models, creating a unique texture in the accompaniment which accelerates, particularly in the pedal, towards the cadences. Already in the opening bar, as points out, the subtlety of Bach's compositional skills are apparent. The alto part anticipates the pedal motif and, with it and the later dotted figure, echos the melody in the soprano. This type of writing—in this case with hidden and understated imitation between the voices, almost in canon, conveying a mood of intimacy—was a new feature introduced by Bach in his Orgelbüchlein.
  • BWV 602 Lob sei dem allmächtigen Gott
File:Durer, Adoration of the Trinity 01.jpg|thumb|Adoration of the Trinity, Albrecht Dürer
Below are the first two verses of Michael Weisse's advent hymn with the English translation of John Gambold.
The cantus firmus for this chorale prelude originates in the Gregorian chant Conditor alme siderum. Although in the phrygian mode, Bach slightly modifies it, replacing some B♭s by B♮s in the melody, but still ends in the key of A. The accompaniment is composed of two motifs, both suspirans: one in the inner parts contains a joy motif; and the other, shared between all three lower parts, is formed of three semiquavers and a longer note or just four semiquavers. In the pedal part this prominent descending motif has been taken to symbolise the "coming down of divine Majesty." Some commentators have suggested that the motion of the inner parts in parallel thirds or sixths might represent the Father and Son in the hymn. Albert Riemenschneider described the lower voices as creating "an atmosphere of dignified praise."