Rainbow (rock band) steered Deep Purple through a significant personnel change, with Ian Gillan and Roger Glover being replaced by David Coverdale and Glenn Hughes. However, the new members were keen to add new musical styles and Blackmore found his request to record the Steve Hammond-penned "Black Sheep of the Family" with "Sixteenth Century Greensleeves" turned down by the band. He decided to record the song with Dio instead, using Dio's band Elf as additional musicians. He enjoyed the results, and a full album, billed as "Ritchie Blackmore's Rainbow" was recorded between February and March 1975 at Musicland Studios in Munich, Germany. The
Ian Gillan early days they were sponsored and championed by Tony Blackburn, who occasionally accompanied Gillan on stage. Later, as well as performing concerts in the UK, Episode Six also toured Germany and Beirut, and had regular appearances on the BBC Light Programme. During his time with Episode Six, Gillan began writing songs together with Glover, forming an ultimately long-lasting partnership. After a strained tour of Beirut, Shields left the band and was replaced first by John Kerrison, then by Mick Underwood. Underwood had previously played in The Outlaws with Ritchie Blackmore, and it was via him that Ian knew about Deep