Music Sprite

1 Select the unique notes in your melody

Play your melody on piano and find all the unique notes. Remember: each letter should only appear once (so pick either F or F♯, not both).

Natural notes

Sharps

Flats

Your unique notes: —

2 Possible keys that match your notes

Select notes above to find matching keys. Then click a key to continue.

Select some notes above to find matching keys

3 Diatonic chords in —

Select a key in step 2 to see the available chords. Once you know your key, you can pick any of its 7 chords. Each chord has a function (Home, Bridge, Outside) — think of your music as a journey: start from Home, venture out, and return Home. Chord function concept inspired by NiceChord 好和弦.

4 Find the best chord for each phrase

Select a key in step 2 to start analyzing phrases.

💡 Chord Progression Tips ▼

Think of chord progressions as a journey:

Basic Formula: 🏠 Home → 🌁 Bridge → 🚀 Outside → 🏠 Home (I → IV → V → I)

Add variety by inserting "-like" chords in between:

🌉 → 🚀 → 🏠 — Autumn Leaves · Jazz standard (ii-V-I)
🏠 → 🏡 → 🌉 → 🚀 — When You Wish Upon a Star · Disney (I-vi-ii-V)
🏠 → 🚀 → 🏡 → 🌁 — Let It Be · The Beatles (I-V-vi-IV)