Press start, then play. Type Cm7 x4 | Dbmaj7 x4, turn on steer and watch the gold notes. Sample 4 bars and loop them.
Lyria RealTime is a music model that streams without stopping and follows a few real knobs: scale, tempo, seed and a style mixer. Lyria improvises, so the same knobs never give the same music twice. THIRI's part is the rule: type a chord chart and, on every chord change, it sets the Lyria scale that holds that chord's notes. Same chart, same scales, same bar lines, every time. What we measured: the scale switch takes notes away within about a second, but it does not make Lyria play the chord. Hear for yourself.
Checking the stream…
The check above keeps bots off the stream. It takes a second.
Keys: S samples, 1 to 8 start or stop a pad. Loops stay in time with the stream and keep playing after the session ends. Chords are read by THIRI's recognizer, one per bar.
Harmony and time
Prompts (the style mixer)
Sound and parts
Behavior and memory
Lyria RealTime is Google's music model, used here through its public API. This is an independent THIRI experiment, not affiliated with or endorsed by Google. Badges marked "measured" come from our 2026-10-19 runs. Your loops stay in your browser until you download them.