ONDA

ONDA composes music live in the browser for seven spaces: Focus, Unwind, Sleep, Stillness, Energy, Balance and Recover. New chords and phrases arrive as it plays, so an hour in it still hasn’t repeated itself, and one drag makes it warmer, brighter, calmer or livelier. Programs of frequencies move through the music as a gentle swell or pulse, a timer fades it out even with the screen off, and because nothing is streamed it works offline. No ads, no trackers, nothing to install — one tap and it plays.