After studying in Paris with a famous composition teacher, Charles became the most successful writer of TV theme songs.
Scaramouch, a hoople and a superhero soundtrack - see if you can spot the real Queen stories.
The author of Help! 100 Songwriting, Recording And Career Tips Used By The Beatles, explains how the group crafted their choruses so effectively.
His keyboard work helped define the Muscle Shoals sound and make him an integral part of many Neil Young recordings. Spooner is also an accomplished songwriter, whose hits include "I'm Your Puppet" and "Cry Like A Baby."
Greg talks about writing songs of "universal truth" for King Crimson and ELP, and tells us about his most memorable stage moment (it involves fireworks).
Cain talks about the divine inspirations for "Don't Stop Believin'" and "Faithfully."