I actually saw 'The Passover Plot' on Hollywood Blvd. around '75 or '76. I would hope that someday it will make it's way to dvd so that people who like to 'think for themselves', can give it a shot, (or a pass), but the music was fitting.
I'm waiting for several well known scores I don't have; The Bad Seed, Carney, Prizzi's Honor and Under The Volcano, to receive fresh minting. Until then I haven't really had a chance to appreciate them, and a number of others that have fallen by the wayside into OOP status before I knew about them.