So I was listening to Michael Berry last Friday, and he did a lightening round on the best movie sound tracks with original music. I was shocked, first of all, that no one called in with The Wall, but then I got in the way-back machine. There’s a 1969, campy western musical - Paint Your Wagon - that is just so very good. Lee Marvin and a very young Clint Eastwood, both singing - or at least attempting to sing - in a musical about the California Gold Rush including Harve Presnell, The Nitty Gritty Dirt Band, and Ray Walston (My Favorite Martian as a mad Irishman). It’s goofy, but it was meant to be so.
It’s on Amazon Prime if you're interested: https://www.amazon.com/Paint-Your-Wagon-Lee-Marvin/dp/B000NJCL5K/ref=sr_1_1?crid=TIAWA5LWN4X8&dchild=1&keywords=paint+your+wagon&qid=1595909686&sprefix=paint+your+wagon%2Caps%2C156&sr=8-1