OMO performs without a central audio server. Timing is social and acoustic: players listen, watch, and use a few apps that share URLs or local entrainment.

Conductor provides:

• Adjustable BPM
• Countdown before a shared downbeat
• A shareable URL (QR in header) so others open the same start time

Limitation: each phone schedules locally. Expect roughly 50–100 ms jitter between devices on the same Wi‑Fi — fine for workshops, noticeable for tight studio grid.

1. Conductor sets BPM and taps Start countdown.
2. Everyone with the shared link hears/ sees the same count-in.
3. Rhythm apps (sequencers, Firefly) start on the downbeat by ear.

Firefly plays a pulse click and listens for onsets in the room (mic). It slowly pulls its internal phase toward heard attacks — firefly-style entrainment.

• Good for pulse / time roles when Conductor links are awkward.
• Works best when players can hear neighbours' speakers.
• Visual flash on each pulse helps silent sections.

Harmonizer tracks chroma from the mic and drives detuned drone voices.

• Assign different roots across the drone row (Just Equal, Heading Choir, Harmonizer).
• Not sample-accurate MIDI sync — harmonic following rather than beat clock.

Swarm Bloom combines evolving drones with ensemble-oriented rhythm — mic and group behaviour; use sparingly with large groups.

Kaoss Pad (Lead / Beat programs) and grid sequencers (Drum Sequencer, Circular Drum, Euclidean Rings) run on local clocks. Align by:

• Starting on Conductor downbeat, or
• Muting until the facilitator cues a layer.

• No WebRTC room or NTP clock in the current repo.
• No Ableton Link — all sync is acoustic / URL-based.

For workshop planning, see Workshop guide → Ensemble (15 min).