Rhythm: metronome tempo tutor

POLYRHYTHM — a new training mode. Two hands, two counts inside one beat. 3 against 2 is open here, all four stages of it: the right hand alone, the left hand alone, both hands at half tempo, then both up to speed. - Two tap zones, one per hand, and each hand scored on its own - The cycle as notation or as two turning rings, whichever reads better for you - A separate instrument for each hand - Practice: the cycle runs on and the tempo follows your hands, a step up when it comes out clean and back down when it doesn't. Five minutes to a session here. - Polyrhythm accuracy is tallied apart from your rhythm statistics The ratios past 3:2 — 4:3, 5:4, 5:3, 7:4 and 7:5 — and practice without the time limit are in Rhythm Pro. Also fixed: a crash that could close the app in the middle of an exercise — most often with the piano sound, or when headphones connected while you were playing.