A dark canvas with light grid lines and note colors.

Note colors, logo, and playhead — everything else disappears. Shareable — add ?watch to the address. Press Esc to come back.

Support Fasola! on Patreon to unlock Virtuoso tier — place notes without cooldown.

Adjusts audio output for this browser only — doesn't affect what other composers hear.

Switch all text to OpenDyslexic, a font designed to improve readability for people with dyslexia. The default is Atkinson Hyperlegible, which is also optimized for low vision.

Replace instrument family colors with a palette that ensures information conveyed through color is accessible to users with protanopia, deuteranopia, tritanopia, or achromatopsia.

Create a private room to start a new composition with friends. Use the four-letter code to join an existing room.