A songwriter's quiet companion.
A live music theory and songwriting workspace. Free to start — no card required. Built for the notebook stage of a song, the moment before it's a demo.
ChordCraft Lab is a real, published app — not a concept deck. It gives songwriters a place to explore chords and scales, test progressions against genre patterns, and build their ears through daily puzzles and guided paths. The interface is deliberately restrained: the tools are there when you want them, silent when you don't.
Free forever: Discover Chords & Scales, Genre Matcher, Daily Puzzle, and Test Knowledge — plus the full playable keyboard. No trial clock on any of it.
Pro unlocks Chord Detective, Ear Training Path, Focus Mode, the Star Shop, and the real leaderboard — $7/month, 14-day free trial, cancel anytime.
Free, Always
- Discover Chords & Scales — every diatonic triad and scale in any key, hear it and see the roman numerals
- Genre Matcher — build a progression and see which genres use it, or start from a genre
- Daily Puzzle — one puzzle a day, real streak tracking
- Test Knowledge — a 10-question adaptive quiz that finds your weak spots
- Playable Keyboard — 2 to 88 keys, 7+ synthesized instruments, fingering hints
Pro ($7/mo)
- Chord Detective — an investigative puzzle mode, deduce the mystery chord or scale from clues
- Ear Training Path — a structured, progressively harder ear-training curriculum
- Focus Mode — endless puzzles weighted to your weak spots
- Star Shop — unlock themes and instruments with stars earned through play
- Real Leaderboard — actual aggregated stats from real users, no invented numbers
Made for Songwriters
- A quiet workspace built around the notebook stage of a song
- Theory that stays out of the way until you need it
- Designed for the moment before a demo exists