Cactus being used as a musical instrument
Media playback is unsupported on your device

Celebration of experimental musician is held in Glasgow

27 July 2012 Last updated at 15:22 BST

Experimental composer John Cage was born 100 years ago.

To celebrate his birthday a concert of his music is being played as part of Glasgow's Merchant City festival.

His music defies convention and he used a variety of unusual sources to make sound including a cactus and a modified piano.