Draw
Add dots, lines, curves, or blocks to the canvas. Each color gives the drawing a different voice.
a free visual music playground
Draw music online. Hear every shape come alive.
Play Music Theory turns a blank canvas into an instrument. Draw with your mouse or finger, press play, and listen as the page reads your marks from left to right. Higher shapes become higher notes, so melody and rhythm are something you can see.
start drawing ↑how it works
From a line to a little piece of music.
Listen
Press play to hear the canvas move through time. Change the tempo or switch on the beat when you want a pulse.
Shape the sound
Try a key, scale, range, grid, swing, or a different program. When it feels right, export a WAV or MIDI file.
music theory you can see
No notation lesson required.
You do not need to read sheet music to begin. The canvas makes pitch, time, rhythm, and tone visible, giving children, beginners, teachers, and curious musicians a direct way to experiment.
- Free to play in a modern web browser
- Works with touch, mouse, and MIDI input
- Explore keys, scales, tempo, swing, and quantization
- Export your experiment as WAV or MIDI
frequently asked questions
A few things to know before you draw.
Is Play Music Theory free?
Yes. The drawing tools and instrument controls on this site are available without an access code or subscription.
Do I need to know music theory?
No. You can start by drawing and listening. The key, scale, grid, and tempo controls are there when you want to explore more deliberately.
How does a drawing become sound?
The horizontal direction represents time, while vertical position controls pitch. Color and program choices change the character of the sound.
Can I use it on a phone or tablet?
Yes. The canvas supports touch input and the controls adapt to smaller screens. Your browser may ask for a first tap before it can play audio.