Complex sentence: John Alec Entwistle, (9 October 1944--27 June 2002), was an English singer, songwriter, composer, musician, film and music producer, who was best known as the original bass guitarist for the English rock band The Who.
Split into simpler sentences: John Alec Entwistle, (9 October 1944--27 June 2002), was an English singer, songwriter, composer, musician, film and music producer. In a music career that spanned more than 40 years, Entwistle was best known as the original bass guitarist for the English rock band the Who.