He then formed the band Renaissance with his sister Jane Relf, the Yardbirds ex-drummer Jim McCarty and ex-The Nashville Teens keyboardist John Hawken.

[2] Relf co-wrote many of the original Yardbirds songs ("Shapes of Things", "I Ain't Done Wrong", "Over Under Sideways Down", "Happenings Ten Years Time Ago"), later showing a leaning towards acoustic/folk music as the sixties unfolded ("Only the Black Rose").

[3] He also sang an early version of "Dazed and Confused" in live Yardbirds concerts, after hearing musician Jake Holmes perform the song, which was later recorded by the band's successor group Led Zeppelin.

He may have been taking medications such as theophylline commonly used to treat those diseases at the time, and these drugs may have led to tachycardia and/or arrhythmia which possibly contributed to his inability to survive the electric shock.

[15] Relf's posthumous 1992 Rock and Roll Hall of Fame induction with the Yardbirds was represented by his widow April, and sons Danny and Jason ("Jay").