Start typing and the music starts with you. Every key plays a note tuned to the chord underneath, the spacebar keeps the beat, and your speed sets the energy. Stop typing and it settles.
Everything runs in this page. Your text is kept only in this browser as a draft, and it is never sent anywhere. The music reacts only to which key and when.
Typesong is free, always. If it makes your day nicer, leave a tip.
Want it in every app, not just this box? Typesong lives in your menu bar on Mac, Windows and Linux: get it on GitHub. Free and open source.