Complex sentence: He left Capitol after only two solo releases and was signed by Warner Bros. Records, with whom he also recorded just two albums before moving on to RCA Records, where he recorded three LPs (including a live performance album, "The Phoenix Concerts").
Split into simpler sentences: He left Capitol after only two solo releases and was signed by Warner Bros. Records, where he also recorded just two albums before moving on to RCA Records. There he recorded three LPs (including a live performance album, "The Phoenix Concerts").