Greene wasn't really trying to play like Cecil or Pullen - he was looking for his own approach, and at that time was inspired heavily by the Tristano school. At its best, his music then could be very condensed and rhythmic or airy and surreal, and I won't argue that the Woodstock gig isn't the best representation. A decent snapshot, sure, but... I almost don't even think of his '60s records anymore as being "Burton" - they're him, obviously, but the pianist he's grown into from the 1980s onward is who I'd like to listen to.