Work Delta Run for stereo tape, slide projection and movement Year: 1981 · Duration: 25m Year: 1981 Duration: 25m Annea Lockwood Composer Composer: Annea Lockwood About Work About Commissioned note Commissioned by the National Endowment for the Arts (USA) Fellowship Related works A Sound Map of Danube 5.1 sound installation A Sound Map of the Housatonic River an installation Cloud Music for four channel tape Ground of Being for two channel tape Immersion for percussion duo The Glass Concert for glass and amplification