(These box sets, issued on Barking Pumpkin, contained repressings of Zappa's albums from Freak Out!
and "Big Leg Emma", both of which were included on the CD version of Absolutely Free (1967) in 1989.
The material overlaps in places with that of You Can't Do That on Stage Anymore, Vol.
A number of the earlier tracks—"I Was a Teen-Age Malt Shop", "The Birth of Captain Beefheart" and "Metal Man Has Won His Wings", all likely recorded in 1964—feature Captain Beefheart on vocals.
These are three light-hearted collaborations; "Metal Man Has Won His Wings" has Beefheart reading the lyrics directly from an advert for a comic book.