Abstract
The author discusses his development and use of a type of musical instrument he calls electroacoustic percussion boards (EPBs). These are essentially sheets of plywood cut into particular shapes, with various hardware devices attached. These devices, which are played in a number of ways, such as by striking, scraping and plucking, give a sculptural appearance to the instruments. Specific instruments are described and some playing techniques discussed. Contact microphones have proved effective with these instruments, as has digital processing as a compositional resource. The aesthetic orientation of the design of EPBs as well as their value as an education tool is explained. Sound sculpture, sound installations and experimental musical instruments are becoming increasingly established as contemporary art forms. Each year festivals and symposia feature such work throughout the world. A journal published by Bart Hopkin in Nicasio, California, Experimental Musical Instruments, which is now in its fourth year, makes it clear what a fascinating area of aesthetic experimentation this is. I. IMPROVISATION AND FOUND
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