Most guitarists can play — but freeze the moment someone says "let's jam." Peanut-Better-Jam teaches you the real skills behind improvisation, musical conversation, and confident creativity.
Technique was never the problem. The moment you start jamming, everything falls apart.
I built Peanut-Better-Jam because I was stuck myself. Not because I couldn't play — but because I felt lost the moment the music wasn't scripted.
Every path I tried had the same gap: theory you only read, or songs you only copy, never the muscle of making something up on the spot.
I couldn't find a tool that bridged that gap, so I built my own — something that gives you a key, a groove, and your own chord order to explore, then actually listens and tells you what happened.
Improvisation isn't magic — it's a learnable language. Once you understand how musical conversation works, jamming becomes fun, expressive, and addictive.
This isn't a course and it isn't backing tracks. It's a loop between playing and knowing exactly what happened.
No setup, no separate metronome app, no guesswork about whether you're actually improving.
Pick any key and scale, tap out a note order on the fretboard, choose a drum groove and tempo — or let Smart Selection listen to you play and set it up for you.
Loop your sequence over a real drum pattern at your tempo. Preview the next note, see the whole neck lit up in your key, switch grooves without breaking the loop.
Turn on the mic and it listens as you play — root hits, chord tones, timing against the beat, all scored live. All audio processing stays in your browser; nothing is ever recorded or uploaded.
No matter your key, scale, mode, note order, speed, or rhythm:
Don't know the notes on the fretboard yet? You don't need to — but you can use the app to master the fretboard, and just as importantly, actually apply them.
Mastery won't happen in a day. But you'll get consistent improvement, at your own tempo and in your own style. Cancel any time