In the final programme of the present series, Derek Jewell chooses some vividly contrasting styles from the spectrum of present-day popular music. The harsh urgency of avant-garde rock is represented by THE pop group. Inventive ' fusion ' sounds come from SPYRO GYRA and from a group led by TONY Williams , RICK WAKEMAN plays one of his own compositions. And three Americans, PATTI SMITH , EMMYLOU HAR RIS and JANE OLIVOR show how dissimilar approaches to modern song can be.