First recording of an extraordinary project from nearly 50 years ago, which arose from Denyer’s ethnomusicological studies of the time, which had forced him to reconsider the basics of music, asking ‘what is a melody?’ and ‘what is a note?’ Denyer responded by composing a series of 25 pieces, starting with one-note melodies, then two-, three- and four-note melodies, ending with more complex fourteen- or fifteen-note pieces. Typically eccentric and fascinating music.