Complex sentence: Prior to recording, Dylan previewed the songs that would constitute "Blood on the Tracks" for a number of friends in the music world, including David Crosby, Graham Nash, Stephen Stills, Tim Drummond, and Peter Rowan.
Split into simpler sentences: Prior to recording, Dylan previewed the songs that would constitute "Blood on the Tracks" for a number of friends in the music world. Dylan played the songs to David Crosby, Graham Nash, Stephen Stills, Tim Drummond, and Peter Rowan.