Ostinaut throws chords and full progressions at you in tempo — a read-ahead lead sheet that moves, real-feel comping under your hands, scale & colour-tone overlays. You build the reflex of navigating changes, not just the theory.
A jazz chord & changes trainer. Ostinato + astronaut.
The next changes travel toward a hit-line and flip into NOW on the downbeat — you read when the chord lands, not just what's next.
Voice-led rootless voicings over a real bass, in tempo. It sounds like a band, not a flashcard.
Flip any chord through ANATOMY, INTERVALS, UPPER structures, FAMILY and NEIGHBORS. Browse scales and modes. Light up THE CIRCLE of fifths.
Adaptive ear training that's honest about what you actually own — intervals first, then the whole taxonomy, at your level.
Son clave to Hindustani thekās — ~80 patterns across 12 traditions, spoken in solkattu. The part nobody else has.
An LED device you operate, not a web form — built dot by dot. Plays in your browser; iOS & Android coming.
Buy it once and play on the web today. Mobile apps are coming — own the app and web access comes with it.