Complex sentence: Recast as a heavy R&B recording based on a rhythmic groove inspired by Al Green, Raitt's version of "Runaway" was disparaged by many critics, but its commercial success prompted a bidding war between Warner Bros. and Columbia Records.
Split into simpler sentences: Recast as a heavy Rhythm and Blues recording based on a rhythmic groove inspired by Al Green, Raitt's version of "Runaway" was disparaged by many critics. However, the song's commercial success prompted a bidding war for Raitt between Warner Bros. and Columbia Records.