Crosby, Stills & Nash fans are all too aware of how the best-laid plans can often go awry -- and in the case of the upcoming live album drawn from a 1974 tour with the trio's on-again, off-again collaborator Neil Young, those plans appear to have changed once again.

Graham Nash broke the news to ABC, explaining that the set's previously announced August 27 release is off because "Next year is the 40th anniversary of the tour, and so I'm gonna wait for spring of next year."

That sounds reasonable enough, but it isn't just anniversary timing that's prompting the delay -- as Nash went on to explain, there's also the matter of all the tapes sitting in the CSNY vaults from the '74 tour. "You gotta understand, our shows were three or four hours long, and there are four of us and we were all writing like crazy," he pointed out. "I just found a one-minute, 10-second song of Neil Young's about Richard Nixon that I can't leave off. It's brilliant...So, my point is, I'm still forming and shaping the album."

According to ABC's report, Nash predicts that the final release will include "about 38 songs"; in the meantime, fans can look forward to seeing Crosby, Stills & Nash on tour throughout the spring, beginning with a pair of special Lincoln Center gigs -- scheduled for May 1 and 3 -- featuring Wynton Marsalis and the Jazz at Lincoln Center Orchestra.