Laurie Spiegel plays 1977 Bell Labs Hal Alles Synth

Concerto for Self-Accompanying Digital Synthesizer. The instrument is possibly the first realtime digital synthesizer, built at Bell Telephone Labs, NJ by Hal Alles and team, with C language software written by Laurie Spiegel that processes the player's live input into an ongoing accompaniment that will continue to be played live against.

Laurie Spiegel

Laurie Spiegel was born in Chicago (September 20, 1945) where in her teens she played guitar, banjo & mandolin, and through them cultivated a devout philosophy of amateur music making. After receiving a degree in the social sciences, she returned to music. Having taught herself notation, she studied classic guitar and composition privately in London, then baroque and renaissance lute at Julliard, and composition with Jacob Druckman and Vincent Persichetti.

Having worked with analog synthesizers since 1969, she sought out the greater compositional control which digital computers could provide and wrote interactive compositional software at Bell Labs from 1973 trough 1979. She later founded New York University's Computer Music Studio, and became famous in rock music circles for her music software for personal computers.