tubes (2007) by Paul Craenen:
Noting Is Real (Strawberry Fields Forever) (1990) by Alvin Lucier:
Several performances of Rainforest (1968-1973) by David Tudor, all using different objects attached to tactile transducers:
An interview with Hugh Davies and some music played on the Shozyg (also using some of his egg slicer instruments):
Listen to more Shozyg music:
Apple Box Double (1965) by Pauline Oliveros. This video documents a performance of Pauline Oliveros and Seth Cluett in 2004:
And here another performance of Pauline and Seth on apple boxes, from September 2016:
Valerian Maly is making coffee for his new students. The coffee cooker is amplified by a contact microphone. The smell of fresh coffee is of course an important element as well during this performance!