MeloKeyMeloKey — Nashville Number System progression builder
Unblock Your Sound. Instantly Spark New Song Ideas.
Compose full, multi-instrument tracks fast — all in one place.
Trial pauses after 3 minutes idle. You only burn time when you're playing.
Everything you need to write fast.
A focused toolkit, not a DAW.
Lock in chords one at a time, jump keys without breaking your progression, and see Roman/number labels at a glance.
Pick maj7, sus2, add9, 7♭5 and more from any slot — the guitar diagram and playback update instantly.
Standard, Drop D, DADGAD, open tunings, plus microtonal 19/24/31-EDO frets.
Tap a chord and hear the progression at 40–200 BPM. We score how common your sequence is in real songs.
Build a library of progressions in any key. Open, tweak, and reuse them across sessions.
Invite collaborators by email, get notified when they save a version, and fork ideas into your own library.
Pay only for the time you use.
One-time time packs. No subscription, no surprises.
Loved by songwriters.
Real words from real users.
"I sketched a full, multi-instrument track in minutes. MeloKey feels more like jamming than 'using software.'"
"It's like having a co-writer who never runs out of ideas."
"Low-key, this app is my new bandmate. It throws out progressions and grooves I never would've found on my own."
Write something today.
Spin up the key wheel and have a progression in under a minute.