One tempo for the whole page — the metronome, the drums below and the chord player all follow this BPM, live, even mid-song.

Play All starts everything together — each style for four bars, then the next, with the chord progression rolling over the top. Starts and stops land on the downbeat, so the beat and the chords never drift apart.

Tap a style to play it — tap the playing style again to step through Simple, Groovy and Full.

Progression

Chord names — Am, F#7, Bbmaj7, G/B — or Roman numerals in the key above — I, V, vi, ii7. Tap any chord chip to hear it on its own. Hit Play while the beat is running and the chords join on the next downbeat.

Touch sets how busy each player gets: the drums step through their Simple, Groovy and Full patterns, the bass goes from holding the root to pumping quarters to a walking line, and the chords from one pad per chord to a strum every beat to arpeggios.

Tap a string to hear its pitch — or listen with the mic and tune to the needle.