Gert Wilden composed loads of groovy music for German films. From the 1950's through the 1970's Wilden left his swinging mark on countless film scores. He scored for action, comedy, but most notably, for a series of sex romps called The Schoolgirl Report.
Crippled Dick Hot Wax has released a couple excellent compilations of his work.
There is so much to love about the music of Ennio Morricone.There is such a rich and diverse tapestry of swingin and sensual tunes from a seemingly bottomless pit of scores. His score to La Donna Invisible is one of my faves. Most of this soundtrack stays on the mellow side of things with some upbeat pop-influenced numbers. My favorite track is easily Rittrato d'autore. Check it out: