Complex sentence: J. B. Lenoir was known in the 50s for his particular zebra-patterned costumes and his brilliant female-like voice but he was a very influential musician and composer playing electric guitar.
Split into simpler sentences: J. B. Lenoir was not only known in the 50s for his particular zebra-patterned costumes and his brilliant female-like voice. He was a very influential musician and composer playing electric guitar.