Crosby, Stills & Nash: David Crosby (vocals, acoustic guitar); Stephen Stills (vocals, guitar, piano, timbales); Graham Nash (vocals, piano, harmonica). Additional personnel: Joe Vitale (piano, organ, flute, drums, tympani, vibes, percussion); Craig Doerge (piano); Tim Drummond, Gerald Johnson, George Perry (bass); Russ Kunkel (drums, congas); Ray Barretto (congas). All tracks have been digitally remastered. Arguably the last great Crosby Stills & Nash album, CSN was recorded before drugs and