Complex sentence: Brave Belt was a country rock band, but Fred's influence started making itself felt, and his contributions on bass, Randy Bachman's guitar and writing talents, and Robbie Bachman's drumming skills soon morphed the band into Bachman-Turner Overdrive.
Split into simpler sentences: Brave Belt was a country/rock band, but Turner's influence started making itself felt. His contributions on bass, Randy Bachman's guitar and writing talents, and Robbie Bachman's drumming skills soon morphed the band into Bachman-Turner Overdrive.