Complex sentence: Many of his ancestors were artists, artisans and amateur musicians and his cousin Antonio Gambula is a conductor based in Genoa, Italy and is also a cellist in the opera orchestra at the Teatro Carlo Felice.
Split into simpler sentences: Many of his ancestors were artists, artisans and amateur musicians. His cousin Antonio Gambula is a conductor based in Genoa, Italy and a cellist in the opera orchestra at the Teatro Carlo Felice.