live Pitch
Per-emission pitch stream — same source, rate (100 Hz), and timestamps as pitchContour. Different surface shape: pitchContour is the accumulated trail (read whole or windowed), livePitch is the per-event firehose (best for live tuner displays, telemetry, anything event-driven).
Backed by the student detector's feedContour pipeline, so timestamps are audible-player-time minus input-latency, and smoothing / octave-correction is applied identically.