Madison Square Garden, New York, NY 3/9/81 (Live) [5LP]Were just now starting to loosen up to the point where we were, say, back in 1970, 72, where we can start drifting from key to key, from rhythm to rhythm, and in the jams, some interesting stuff has come up. Once again, were tending to go new places every night. Bob Weir, Rolling Stone, 1980 3 9 81 at Madison Square Garden delivers all that. It's got color and texture and freshness, keyboardist Brent Mydland's Hammond organ painting a new layer for