On The Edge Improvisation In Music. Word Search Puzzle Solver. On The Edge Improvisation In Music word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. British series stressing the role of and showing different kinds of improvisation in music. Produced for UK's Channel Four. Written and narrated by Derek Bailey. This includes identifying and searching for words that are related to : Documentary, Music, Derek Bailey .