Jam Jam
A catalogue of 142 sounds, organised by family
Pianos, organs and accordions, guitars, basses, bowed strings, ensembles and choirs, brass, reeds, flutes, synth leads and pads, world instruments… The sound picker groups 142 instrument sounds into 17 clear families — 120 General MIDI instruments, 16 character presets (techno, psytrance, hardtek, lo-fi) and 6 acid instruments — with a search bar and one-tap favourites. 17 sounds are free — piano, electric piano, organ, accordion, harmonica, guitars, bass, violin, cello, flute, kalimba and more — and a Premium subscription unlocks the full catalogue, on mobile and on the web alike. Mark a sound as a favourite once and it shows up first everywhere: your favourites are synced to your account across devices.
One download, real instrument ranges
The 120 General MIDI sounds come from a single sound bank you download once, while the character presets and the acid instruments are synthesised by the engine itself, with nothing to fetch — after that, every sound works offline on your phone. The keyboard also learnt where each instrument actually lives: pick a cello or a flute and the octaves adjust automatically, while keys outside the instrument’s real range are greyed out. You always play notes the real instrument could play.
New: the keyboard capo (Premium)
Guitarists clip on a capo to change key without changing fingerings — the Jam Jam keyboard can now do the same. The new keyboard capo, a Premium feature, transposes the keyboard’s output by up to 11 semitones: keep the fingering you know and hear the key you want, with a visible badge so you always know a capo is active. It works with the on-screen keys and with a plugged-in MIDI keyboard, and the note names on the keys show what you actually hear.
Try the new sounds right now on the free online keyboard: