Theremin Conductor 🎵

Left hand sets pitch. Pinch thumb to index for no vibrato; spread them for more.
Right hand: speakers fade continuously with height; the buzzer is on/off only (it's a piezo) and uses the dashed gate line as the threshold.
Hover any setting below for what it does. The Vibrato slider in settings is the ceiling; your finger gesture scales it 0 → 100%.