Most peculiar is an unaccompanied, unidentified piano piece. Monk often opened a set with a brief solo version of an old standard, and that's what this sounded like. But no one I asked (musicians, friends of Monk, old-song experts) could come up with a title or composer, nor has anyone come along since it was first issued in 1984.
    One more previously unheard number is worth noting. "Bye-ya" closed out the final set that evening; it's an earlier Monk composition that was otherwise never recorded for Riverside, and it is distinguished by the presence of guest drummer Art Blakey. Overall, things are rather sloppy, and Griffin's solo goes on too long. But Thelonious follows with a wonderfully concise solo; this is a rare glimpse of the Monk/Blakey team in spontaneous live action; and above all it offers a unique chunk of jazz reality-some good friends hanging out together in a club very late at night, and surely paying little or no attention to the tape machine.     —Keepnews, p.138