Deichkind - Porzellan Und Elefanten from DJ Coma on Vimeo . From: Deichkind - Niveau, weshalb, warum amazon.de/Niveau-Weshalb-Warum-Deichkind/dp/B00QGWM47I
Sound is a travelling wave which is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations