I'll keep this one short, as most of the other reviewers have done an excellent job on this one.  I think I have just about all of Franks's music.  Just wanted to add that "Dont you Ever Wash that Thing?" stands as one of my favorite works of Frank.  A rendition that will leave musicians with their jaw agape with envy of the mind-blowing talent of this particular ensemble.  "Pigmy Twilight" is pretty darn fine as well!  If you are a Zappa fan, DO NOT HESITATE and add this one to your collection!