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Stephen Ruppenthal

(John )

(b Oakland, CA, Sept 19, 1952). American guitarist, synthesizer player, and producer. He studied economics at Harvard University (BA 1976) and began performing in improvisational contexts in 1974. In 1979 he became involved in experimental rock and has since performed extensively in the United States and abroad. He has worked with, among others, Derek Bailey, David Lindley, Fred Frith, Herbie Hancock, Jerry Garcia, Bill Laswell, Eugene Chadbourne, Michael Stipe, Diamanda Galás, John Zorn, Richard Thompson, and John Oswald; he has also played with the Rova Saxophone Quartet and many free-music groups in the San Francisco Bay area, where he has been based. In both solo and ensemble performance he characteristically aims for some type of fusion of rock, jazz, non-Western, and avant-garde classical styles and focuses on “language elements of attack, articulation, pitch bend trajectory, and velocity.” His use of elastic rhythms, non-tempered scales, and widely varied timbres shows the influence of Southeast Asian and Indian musics and the blues. His extended solo improvisations (such as “The Shadow Line” on the album ...

Article

Anne Beetem Acker

(b Bermuda, July 10, 1957). American audio engineer, musician, and owner of Keith McMillen Instruments, based in Berkeley, California. He received his BS in acoustics from the University of Illinois, where he also studied classical guitar and composition. In 1979 he founded Zeta Music, which designed and sold electric and electronic violins and basses. In 1992 he organized a research laboratory for Gibson Guitars. He developed a computerized composition, notation, and performance system, and also helped devise ZIPI, a MIDI-like music control language. At the Center for New Music and Audio Technologies at the University of California, Berkeley, he researched audio networking, synthesizers, and string instruments. In 1996 he became director of engineering for the audio processing and distributed music networks division of Harmon Kardon. In 1999 he founded Octiv, Inc., an Internet audio signal processing company, which produced the ‘Volume Logic’ plug-in for iTunes that allows digital audio remastering to improve the sound produced by computers and MP3 players....