Question 1

What is a music sequencer?

Accepted Answer

A music sequencer lets you program notes on a grid that plays back in time. Each column is a step in time and each row is a note. Click cells to toggle them on and off, then press Play to hear your loop.

Question 2

Can I change the musical scale?

Accepted Answer

Yes. Pick from Major, Minor, Pentatonic, Blues, Chromatic and more. The scale constrains the available notes so any pattern you build will sound musical.

Question 3

How do I use my keyboard?

Accepted Answer

Click a row label to select it (it highlights), then press number keys 1-9 and 0 to toggle steps 1-10 quickly. You can also just click cells directly with the mouse.

Question 4

Is this sequencer free?

Accepted Answer

Yes — completely free, no signup, no download. All sounds are synthesized in real time using the Web Audio API, so nothing is uploaded and your music stays on your device.