So if anyone has any suggestions, please add them here. I'm especially after any 60s or 70s soundtracks that are streamable (don't make me have to edit this and put streamable in bold capitals...).
Random songs that were originally part of a soundtrack belong here too, e.g. Roller Girl, from the 60s TV movie Anna. (Watch this clip of it, if you haven't yet.)
As for more recent soundtracks, anything goes - baroque, jazz, electro - as long as it's not too jarring. Or not that bombastic boring filmscore type of sound.