Complex sentence: Colin Pincott, who had played with Jimi Hendrix and Elvis Presley; and Andy Summers, before his Police days; and was promoted on tour with a six-piece jazz-pop group called The Movies.
Split into simpler sentences: Colin Pincott, who had played with Jimi Hendrix and Elvis Presley; and Andy Summers, before his Police days. The album was promoted on tour with a six-piece jazz-pop group called The Movies.