Cassette play-hair 2005 Cassette play-hair is a modified vintage cassette player. The recording on the tape is that of a monotonous human voice. A timing circuit controls the speed of the tape, which changes the pitch of the voice from low (male adult) to high (child). A nylon hair mounted on the casing of the machine grow and un-grows according to the pitch of the voice. This autobiographical installation illustrates the passage to puberty, which arrived in my life at the same time as my first cassette player.