The stage production of A Shoggoth on the Roof (based on the writing of H. P. Lovecraft) will now never come off because of legal challenges by the "Fiddler on the Roof" team of Jerry Bock and Sheldon Harnick who wrote the music.
Especially not to be missed is the mock documentary unearthing the origin of the musical, which features the great line: "There were some things man was not meant to adapt to musical theater." So true.
Perhaps they might have stuck with a score which has already passed into the Public Domain, say Offenbach's 1880
Tales of Hoffmann
Via Metafilter. Thanks to my friend Daryl for the Lovecraft link.