JS Bach's BWV 846 Prelude in C Major (c.1720) chords are arpeggio played as 1, 2, 3, 4, 5, 3, 4, 5. This is played backwards as 5, 4, 3, 2, 1, 5, 4, 3 and the harmonic structure is still easily recognisable. Bach's piece was for solo piano/ harpsichord and so the sequence using 1, 2 at the beginning sets up the chord structure. Playing it backwards needs a separate double bass and cello to support the chord structure. I've added a viola to accentuate the chords and mixed it low so it is not mistaken for melody (because this song was never about melody).

BachWards Prelude in C Major

Second file : JS Bach's BWV 846 Prelude in C Major (c.1720) chords are arpeggio played as 1, 2, 3, 4, 5, 3, 4, 5. This is re-sequenced as 1, 4, 2, 5, 3, 4, 3, 5 & the harmonic structure is still easily recognisable. It's actually 1, 2, 3, 3 played on the odd notes. This version has a bassline (which required a lot of chord analysis). A cello and viola parts are very quietly mixed to accentuate the chords.

Yahaya Abdullah