AEOLOTRON

Click Wake the machine, then play the keys with a mouse, touch, your computer keyboard, or MIDI. Start with Ghost Choir. Let a chord settle and listen for the airy delay before the tone catches.

Breathing supplies irregular, finite phrases with inhalations between them. Manual lets you hold Space or the breath pad to exhale, then release to refill. Drag up on the pad for more pressure. Continuous feeds the bellows steadily. The Wind control sets how hard you blow; the meter shows pressure inside the machine after inertia, leaks, and the air drawn by notes.

A note can wait silently below its starting threshold. Near that threshold, reeds hesitate and sputter. Push the wind for brighter tape harmonics, reed strain and a small pitch lift. Let it go for a falling pitch and a short, fresh exhale. As the tape voice blooms, audible air recedes into voiced production. It stays exposed when a reed struggles, and returns briefly on release. Real, forward-playing exhales and mouth attacks supply one shared human breath. Quiet, dry inhalations occur between phrases while notes remain held; the final note ends without an extra inhale. Stronger pressure brings a little throat effort. Variations change with each breath, and a chord uses the same performer. Air and tone share moving mouth and chamber resonances. Choir voices use embedded recordings of sung oo and ah vowels. They progress from whispered air into a close, fragile voice, with individual vibrato and tape drift. Speaking reeds draw more air from the shared bellows than waiting valves; a chord also spends the lung reserve sooner.

MIDI: choose CC2, CC1, CC11, or channel aftertouch as Wind. Non-selected aftertouch adds expression to reeds; it needs an existing air supply. Pitch bend and CC11 expression are per MIDI channel. Match the selected bend range to your controller. Sustain remains independent of Hold notes. Escape silences all notes and resets controllers. Z / X shift the computer keyboard.

Microphone: this uses microphone noise level as a breath gesture, not airflow measurement. It calibrates for 1.5 seconds; stay quiet, then blow gently across a close mic. Use headphones to avoid feedback. Stop the microphone or choose Use panel wind to return to the controls. Permission is requested only when you click the microphone button.

Self-contained sound: the Choir blends recorded sung vowels from OddVoices, vocal data by Nathan Ho released under CC0 1.0. Strings, Flute and Reeds retain generated tape-inspired timbres. The human breath recordings are Soft Slow Breaths by tsjhwt, Breathing (male) by dav0r, and Breathing Tired by mikeask, each released under CC0 1.0.