Sheet music for piano or harpsichord.
Little Prelude in C Major by Johann Sebastian Bach, BWV 924, from the Notebook for Wilhelm Friedemann Bach.
This piece is often referred to as Prelude No. 1 from '9 Little Preludes' (BWV 924-931).
Source: 'Klavierbüchlein für Wilhelm Friedemann Bach' (1720), manuscript preserved at the Library of the School of Music, Yale University.
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