Undertow
Ready when you are
Song
Parts
On and off apply in both modes. In the full song, a lit dot means the part is playing in the current section.
Your hook
Tap a square to place a note, tap it again to clear it. The hook follows the chords, so every note stays in key.
Mix
Filter darkens the music without touching the drums. Energy sets how busy the hats and shaker are. On a phone, switch off silent mode to hear it.