Crosby, Stills, Nash & Young released only 22 songs together during 1969 and 1970, many of which have become standards in the classic rock canon. In Part I of our series, I talk about how CSNY got together amidst frustration with their former bands, and the first moment of vocal harmony between Crosby, Stills, and Nash. Also, why they refused to call themselves a "band," the good life in Laurel Canyon, and the events, heartbreak, and drug use that all had a deep effect on the making of "Deja Vu."