AAS in an nstrument consisting of eight organ pipes, modified by adding aluminium tubing and a slide (similar as in toy slide flute). Position of the slider is controlled by a servomechanism. Air from an organ bellow is passed through valves which are also controlled by servos. This allows for full computer control of both pitch and volume of played notes by controlling positions of the servos with Arduino.
Software written for the purpose of the instrument in Pure Data environment analyzes spectrum of any sound source captured with a microphone, by finding most important harmonics. Results of the analysis are converted in real time to data controlling the servomechanisms, which allows to play back these harmonics directly with the pipes. The idea is to resynthesize any sound with the pipes, creating sort of acoustic additive synthesizer. The idea is inspired by main principles of spectral music.