A top New York studio musician, Ralph played guitar on many '60s hits, including "Lightnin' Strikes," "A Lover's Concerto" and "I Am A Rock."
Yngwie Malmsteen and Steve Vai were two of Graham's co-writers for some '80s rock classics.
Kristian talks songwriting technique, like how the chorus should redefine the story, and how to write a song backwards.
There are no more rock stars - the last one died in 1994.
Just how much did these monsters of rock dabble in the occult?
The "Lowdown" and "Lido Shuffle" singer makes a habit of playing with the best in the business.