Music Magic · Chord Arrange

Play chords, make a full song

Play chords on MIDI and watch chord blocks appear — or pick a library progression and tap Make song to build your little house.

Build a house with chords

Tap to record

Record at least 30s

Your recording is only used for this song

Pick music

Result preview

Your chords became a song

Available on: Desktop Mobile Tablet Web app

Your chord-arrange buddy

Turn your chords into colorful blocks — pick from the library or record your own, and we'll build a full song.

Play — chord blocks appear

Connect MIDI and start recording — each chord becomes a colorful block in order.

Pick from library or surprise me

Warm Home, Forest Nap, Rainbow Circle — preview and pick; or tap Surprise me for a random progression.

Tap Make song — house becomes a song

Record 30s with 4 chord blocks, or pick a library track — your full song shows up on the right.

Why chord arranging?

A few chords are enough to start — easier than writing from scratch.

Play to create

A few chords are enough — no sheet music or theory needed.

Blocks build a house

Chords turn into colorful blocks — building a house feels like play.

Library works too

No keyboard? Pick a library progression and start arranging right away.

Safe & trusted

Filtered content — parents can relax while kids explore music.

Three steps to your chord house

Choose a source

Record on MIDI, or pick a chord progression from the library.

Record or pick

MIDI: play 30s with at least 4 chord blocks. Library: pick one and you're ready.

Make your song

Tap Make song, wait a moment — your chord house becomes a full song.

Build chord houses in class — or score a bedtime story

Music class, family projects, or bedtime stories — a few chords become a gentle little song.

What families say

Real moments from music class and family creativity.

Ms. Chen

Elementary music teacher

Kids love watching chords turn into colorful blocks — they play and hear a full song. The classroom buzzes.

Doudou's mom

Parent of an 8-year-old

No theory needed — pick Warm Home, tap Make song, and bedtime stories get a gentle soundtrack.

Lele

Grade 5 student

I played C, G, Am, F on MIDI — the animal band on the right felt like they were playing with me!

FAQ

Answers about chord arranging.

Not always. Pick From library and start arranging right away. To play your own chords, connect a MIDI keyboard in Chrome or Edge.