Bird and Person Dyning (1975) by Alvin Lucier
p. 88 Pendulum Music by Steve Reich
Pendulum Music (1968) by Steve Reich
(score from: http://www.smithsonianmag.com/arts-culture/5-12-examples-of-experimental-music-notation-92223646/)
p. 84 Quintet by Hugh Davies
Quintet (1968) by Hugh Davies:
p. 40 Leslie tone cabinet
Leslie tone cabinet
p. 3 Audio Ballerina’s by Benoît Maubrey
Audio Ballerina’s by Benoît Maubrey:
p. 3 LapStrap by Steffi Weismann
Different Version of LapStrap (since 2010) by Steffi Weismann, all using portable loudspeakers: