G MINOR BACH - J. S. Bach

Popularly known as "G Minor Bach," this piece was originally written by J. S. Bach for tempered harpsichord, titled "Prelude and Fugue No. 2 in C Minor (BWV 847)."

But it gained even more notoriety with Luo Ni's piano arrangement for the game Piano Tiles 2, the same version you can find here.