BOTTLEBELLOWS

Instruments in which the vibrating element is the air itself are AEROPHONES.

Based on the age-old method of blowing over the edge of the bottle, the bottle bellows are single-tone instruments tuned to a consistent note by using epoxy resin, or water, to maintain a fixed volume of air. The bottles are cradled in cyclists’ drinks holders and are fixed in relation to a shaped airflow by being bolted to a welded frame. The upper octave uses soy-sauce bottles in a bespoke frame attached to smaller bellows, but the principle remains identical.

Other aerophones in the show include kid's "whirly toys" and single note whistles...

Click on the image to hear a sample.