Book excerpt: F.C Judd (1914-1992) was a pioneer in British electronic music, working in the 1950s and 1960s. His importance hinges on a wide range of electronic activities: from his compositions, self-built synthesizer and sound visualisation system to his books, magazine articles and radio broadcasts. He was a prime mover in disseminating electronic sounds and musique concrete to the public - not just encouraging them to listen, but also to experiment with tape recorders and tone generators. 'Electronics In Music' was originally published in 1972 and describes the principles behind early electronic musical instruments and synthesised sound, including circuit diagrams. Published by Foruli Classics - dedicated to bringing the best out-of-print music and popular culture books back into print.