Rolling arpeggios in F, with a little inspiration in every bar.
Ten bars, one chord each. Pick a different chord for any bar, or tap a bar to jump to it.
Play along on the keys, or with your keyboard (A to ; for the white keys, W E T Y U O P for the black). Gold dots mark the chord tones of the current bar.
The recording that inspired this toy is contemporary neo-classical piano, close to the post-minimalist school of Einaudi and Max Richter. A low bass note and a high melody note land together on every beat, and three inner notes roll between them in steady sixteenths.
The harmony is plain F major with a few borrowed chords. The Db major 7 and Bb minor 7 come from F minor, and they give the piece its gentle, wistful turn before it settles back home.