Out of much of the music I have been listening to in the last month or so, Kay Kay and His Weathered Underground's "Bowie the Desert Pea" is one of my favorites. There is something very 70s pop rock about this particularly song. And given the promotional photos of them, this sound is very much on purpose. The song "Birds (On A Day Like Today)" has a Paul McCartney feel to it, but not so much his work with the Beatles as his later band, Wings. Their songs are often very lush, especially in "Oh Lord, I Hate You California," and they employ a large number of musicians in their live shows to achieve that sound.
Kay Kay is associated with Gatsby's American Dream (they share a member), another band that is polyretro, drawing from a wide variety of genres for inspiration.
One of the other fascinating things about this band is how often they release their work on non-modern forms, like cassette tapes and vinyl records. Given their retro sound, this is all too fitting and is evocative of McLuhan's ideas of "the medium is the message" mantra, though in a way McLuhan may not have anticipated.