Gold keys: right hand. Blue keys: left hand. Change the key with − and +: the score, the chord symbols and the sound move together.

Sounds: Salamander Grand Piano by Alexander Holm (CC BY 3.0); Wurlitzer EP200 by Greg Sullivan (CC BY 3.0); Virtuosity Drums and Black And Blue Basses (CC0). Music font: Bravura (SIL OFL).