Composer who explored the physical nature of sound in pieces such as
music on a Long Thin Wire had suffered a recent fall
![Alvin Lucier, American avant-garde composer, dies aged 90](https://i.guim.co.uk/img/media/5d127c5ea30bc43f618f924752862890a4f305cc/99_247_901_540/master/901.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctZGVmYXVsdC5wbmc&enable=upscale&s=399992f8693e3fca3a5817150e9df258)
Alvin Lucier, the composer whose explorations of the physical properties of sound made him a significant figure in the US avant-garde, has died aged 90.
His daughter said the cause was complications after a fall, according to the
New York Times. His ex-wife Mary Lucier wrote: “The great Alvin Lucier has died. Long live Alvin Lucier.”