Well, tis Friday, an' I done thought of a theme, so here's another episode of Friday Night Is Music Night. The theme is 'doors,' which I figure is probably a bit of an easy one. The six in the OP also have a general kinda-sorta-vaguely-1950s-related thing going, 'cause I felt like it, but feel free not to follow my lead on that score if, as you're as ever welcome to do, you feel like adding your own suggestions in comments.
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