About this arrangement

The opening of Bach’s Well-Tempered Clavier (1722): no tune at all, just a chord broken into a ripple, twice in every bar. After a quaver rest the right hand plays three notes, low to high, twice (G C E, G C E); the left hand lays down the two notes underneath, a quaver on the bass note and then a held inner note. Here are Bach’s first seven bars: the right hand exactly as he wrote it, and his two left-hand notes played one after the other instead of the bass being held; then the opening bar once more to come home, and a final held chord. The hand shape changes every bar, and bar 6 has an F sharp, so find each new chord before you play it.

Practice tip: Play each bar as a block chord first, both hands together, to learn the shapes; then break them up. Keep the semiquavers soft and even, and let the left hand’s held note ring under the ripple.

A short history

The Prelude in C major, BWV 846, opens the first book of The Well-Tempered Clavier, which Bach finished in 1722 while he was Kapellmeister at Cöthen: twenty-four preludes and fugues, one in every major and minor key, to show that a keyboard tuned so that all the keys were usable could play in all of them. A shorter early version appears in the little keyboard book Bach began in 1720 for his eldest son Wilhelm Friedemann.

The prelude has no melody; it is thirty-five bars of the same broken-chord figure over slowly shifting harmonies. In 1853 Charles Gounod laid a new melody over it, which became his famous “Ave Maria”. Nineteenth-century editions often printed an extra bar after bar 22, added by the copyist Christian Friedrich Gottlieb Schwencke, and the “Schwencke measure” survived in print for decades before editors removed it.

It is now among the first Bach pieces most pianists learn.

Quick facts

Tune
Johann Sebastian Bach, 1722
Key
C major
Time signature
4/4
Length
9 bars
Tempo
Flowing, crotchet = 72
Difficulty
Level 6: Moving on (piece 187 of 201)
Type
Classical
Hands
Both: melody in the right hand, chords in the left
Copyright
Public domain tune; arrangement by Digital Greenhouse, free for personal and classroom use

Questions and answers

What key is Prelude in C in?
C major, in 4/4 time. There are no sharps or flats in the key signature.
How long is it?
C major, 4/4, 9 bars. The tempo marking is Flowing, crotchet = 72.
Is Prelude in C out of copyright?
Yes. The tune is by Johann Sebastian Bach, 1722. Our piano arrangement is free for personal and classroom use.
What is the hardest part?
Play each bar as a block chord first, both hands together, to learn the shapes; then break them up. Keep the semiquavers soft and even, and let the left hand’s held note ring under the ripple.
Can I print it?
Yes. Press Print above to put this piece on its own page, or choose Save as PDF as the printer for a file. It prints on A4 paper; if yours is US Letter, choose US Letter in the box beside Print. The notes are the same size as a printed music book.

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