Complex sentence: By early 1964, he was their co-manager and approached Derek Everett of EMI who suggested producer Mickie Most, who in turn agreed to work with the band after seeing them perform in Bolton on a prepaid return air ticket from Lisberg.
Split into simpler sentences: By early 1964, he was their co-manager and approached Derek Everett of EMI who suggested producer Mickie Most. He in turn agreed to work with the band after seeing them perform in Bolton on a prepaid return air ticket from Lisberg.