Make a folded bellows breathe in a small, offline instrument.
Choose five notes and three synthesized timbres. Listen to one of four short calls, then build your own reply of up to 16 notes. Touch breath and the virtual bellows shape the phrase; mute or replay it a finite number of times, without racing a timer or moving faster for a score.
On a non-folding iPhone, use the screen breath and note controls. This version offers virtual bellows play; live physical fold control is unavailable. Sound is generated locally, with no microphone recording.
One reply and its settings stay on this device. Grown-up settings use device-owner authentication and can erase the saved reply. No ads, in-app purchases or external transmission of app data.