Complex sentence: Decided to focus entirely on music, Ruíz dropped out of school in 1983 while playing in his native Venezuela, where he toured and recorded with local and visiting musicians, and also became a busy studio musician as a jingles composer and arranger.
Split into simpler sentences: Decided to focus entirely on music, Ruíz dropped out of school in 1983, playing in his native Venezuela. He toured and recorded with local and visiting musicians, and also became a busy studio musician as a jingles composer and arranger.