Composer and computer musician Mark Trayle has died. He studied at Mills College in the 1970s with Robert Ashley, David Behrman and David Rosenboom, and in the 80s formed part of The Hub, the project formed from the ashes of Bay Area supergroup The League Of Automatic Music Composers, alongside Jim Horton, John Bischoff, Tim Perkis, Rich Gold and others. The Hub, named after the central machine they used in live performance, explored the possibilities of making music via computer network, where each performer might access and use sonic commands, parameters or information provided by the other musicians. A three CD collection of their work appeared on Tzadik in 2008. Trayle's music was released on Artifact, Atavistic, Nonesuch and many other labels, and he collaborated or performed with Wadada Leo Smith, Nels Cline, David Behrman, Alvin Curran, The Rova Saxophone Quartet and numerous others. At the time of his death he was on the staff of the music department of CalArts in Los Angeles.