Linechime: draw a sound loop

Roomel Studio

In-app purchases

About this app

Draw a line on a grid.

Every corner it turns becomes a note. Close the line into a loop, and it plays on its own — quietly, endlessly, until you close the app.

There is no score, no timer, and nothing to win. You make a shape, and the shape becomes a sound you can leave running while you work, read, or wind down at the end of the day.

Relaxing background music for focus, for reading, for sleep — generative, and made by you.


HOW IT WORKS

Trace — follow one of eight prepared shapes with your finger: a heart, a moon, a flower, a star, a circle, a wave, a spiral, a comb. Each one has its own rhythm, because the rhythm comes from where the line turns.

Draw — make your own line. Bring it back near where you started and it closes into a loop. Small circulating orbs travel the line and ring each corner as they pass.

Whatever you draw sounds right. The notes come from a five-note scale, so there are no wrong turns — a line scribbled without thinking still comes out as music you can listen to for a long time.

It is closer to a quiet instrument than to a game, and closer to something you leave on than something you finish. Ambient music you make yourself, rather than music you pick from a list.


SHAPE THE SOUND

Sound — soft tones, marimba, music box, glockenspiel, kalimba, singing bowl, paper, bamboo and more. Every sound is built from scratch inside the app; there are no audio files.

Mood — four scales that change the colour of the whole piece, chosen by feeling rather than by music theory.

Layers — run up to three loops at once, each with its own line, sound, volume and speed. Give them different speeds and they drift against each other, and the pattern takes a long time to come back around — ambient music that keeps moving.


SHARE

Any piece becomes a single link.

Whoever you send it to can hear it straight away, in their browser, without installing anything. Exactly as you made it, same sounds. If they like it, they can get the app from there.

Sending and receiving are both free, always. The link is also your backup — anything you want to keep, keep the link.


MAKE A VIDEO

You can turn what you are hearing into a short video, sound included.

Square or vertical (9:16), your choice. It lands in your gallery, so you can watch it again later or post it anywhere.


WHAT IT DOES NOT DO

No accounts. No sign-up. No advertising. Nothing about you is collected. Everything you make stays on your device.

The visuals and every note are generated on the spot, so the whole app is about one megabyte and works without a connection — on a plane, on the train, anywhere.


FREE AND PAID

Free: trace all eight shapes, draw your own, keep one piece, three sounds, one mood, send or receive links, and make videos.

One purchase unlocks everything: all ten sounds, all four moods, three layers at once, the finer grid, and up to thirty saved pieces. It is a single payment, not a subscription.

Links you receive always play in full, even sounds you have not unlocked.

What’s new

Two bug fixes.

Your piece was only saved when you left the drawing screen with the back arrow. If you pressed Home, switched apps, or let the screen turn off, it was lost without warning. It is now saved whenever the app goes to the background. Sorry if this cost you a piece.

Tapping Unlock could also leave the dialog stuck on "Checking what you already have". It now tells you when the check is done, and reconnects to Google Play on its own if the connection drops.