Warthur
One of two posthumous Mothers of Invention collections Zappa would release in the immediate aftermath of the band's breakup (more archival material would eventually trickle out over the years), Burnt Weeny Sandwich is structured like its title: the "bread" of the sandwich consists of WPLJ and Valarie, two of the Mothers' twisted doo-wop attempts - WPLJ is a straight out comedy song, whilst Valarie is a lament for lost love which actually sounds kind of sincere for once. As for the meat, we have a selection of Zappa compositions delivered in note-perfect form by the Mothers, which a tendency to showcase Zappa's classical influences - the "Igor" of Igor's Boogie being most likely Igor Stravinsky.
These tracks are almost entirely instrumental, making this an album you'll absolutely love if, like me, you liked the instrumental tracks on Uncle Meat. What pushes it into the must-have category is The Little House I Used to Live In, an epic track that takes up most of the second side and takes us through the Mothers' entire sonic universe before depositing us at a live concert (where we get to see Zappa's good-natured handling of a heckler). Maybe it is a posthumous Frankenstein rising from the MOI's grave, but it's an expertly designed one.