CSNY's sonic exploration goes beyond their pivotal contributions to West Coast folk rock. Stills' rendition of Young's “The Loner” demonstrates his love for husky blues riffs and Southern boogie, and another guitar jam, Crosby's “Cowboy Movie,” is a ragged outlaw tale that erupts into acidic feedback and gnashing howls. As a trio, CSN have even dipped into synth-fueled '80s rock with the punchy “War Games.”