the original lp cut the ending of "castillian drums" by one beat; the missing beat has been restored on the cd reissue. also, some of brubeck's announcements (and macero's introduction) from the stage were replaced (possibly because they were clearer in sound), but the originals remain on the reissue. the liner notes (by george simon, jazz critic for the "new york herald tribune") include extensive comments by brubeck on each selection.