How to train two-hand coordination on piano starts with strengthening each hand separately, understanding the melody role in the right hand and the accompaniment role in the left, then combining them at a very slow tempo with a metronome. These seven stages take roughly three to six months with short, regular daily practice.
- Master each hand on its own until fluent before joining them together
- Practice at a very slow tempo, because speed grows from repeated accuracy
- Break a song into short phrases and stack them little by little into one whole piece
- An acoustic piano or a keyboard with at least 61 keys so the range fits both hands
- A metronome, either a physical device or a phone app, as an honest tempo keeper
