This one looks like it'll be a fun search. There were two versions of this movie with two separate scores, the uncut 96min version and the 78min "Shelly Duvall's Rock 'N' Rhymeland" version. Either way I'm pretty sure neither were released, but I'd still like to throw out a line.

The uncut version can be viewed here! - youtu.be/eLroxgTIV0w