Turn Audio on, then hold the pad — X = pitch. Allow motion when asked. Pick how your movement drives the filter:
Tilt — forward/back sweeps a wah bandpass, sideways sets resonance. Shake — sudden jerks open a lowpass. Ladder — four lowpass stages (≈24 dB/oct, Moog-style); pad Y and tilt set cutoff, slider sets resonance. Flat — sound only while the phone lies flat, a tabletop gate.
Same synth every time — only the mapping changes. Notice how each mapping makes it feel like a different instrument.
Filter — Hz
Q —