Original sentence: He played with Earl Hines in 1937, then played in Red Saunders's group, where he remained for the next 25 years, recording with him extensively in addition to occasionally releasing material under his own name
Edited sentence: He played with Earl Hines in 1937, before joining Red Saunders's group, where he remained for the next 25 years, recording with him extensively in addition to occasionally releasing material under his own name