← Heartbeat Observatory

Studio

Pick a beat, record over it, stack your ad-libs, go back and fix a part, then save your song. It all runs on your phone. Your voice never leaves it.

Before your first take

1 · Beat

Upload your own beat
This file was made in the Beat Lab, so it can be edited.

Or make your own beat · Beat Lab

No producer needed. Pick a style and a mood, press the dice, then change any part until it's yours: tap the drums, swap sounds, roll a new melody. Then record over it right here.

Write it · Know your rights

Write your verses bar by bar with a syllable count and rhyme ideas. Then learn the steps to own and release your song: copyright, split sheets, getting paid.

0:00 Pick a beat to start

That take

2 · Voice layers

Tap the round button to choose which layer records. A new take replaces only the part of that layer it covers, so you can punch in a fix.

Upload a voice file

3 · Recording settings

Applies to all voice layers when you listen and save. Your original takes stay unchanged.

Put your headphones on, tap, then tap the big button on every click you hear.

For your next take: move right if new vocals land late, left if they land early. Existing takes stay where they are.

4 · Save

Save as MP3, video, or WAV, or share it from your phone. Nothing is uploaded. Leaving the page clears your takes, so save first.

Want a different beat?

Tell the crew what you want: style, tempo, mood, an artist it should feel like. Requests become new Heartbeat beats (free, CC0).

Heartbeat beats are made from math by our crew's own beat kit, no samples. Free to use for anything (CC0). Open the Beat Lab to build your own.