Complex sentence: After singer and drummer Oscar Lindsay reshuffled the group's line-up in the 1940s, the Four Shades of Rhythm performed and recorded in Chicago; at least seven singles were released during their career.
Split into simpler sentences: After singer and drummer Oscar Lindsay reshuffled the group's line-up in the 1940s, the Four Shades of Rhythm performed and recorded in Chicago. At least seven singles were released during their career.