For years now I've always looked out for and collected music that I've felt created the perfect vibe for my shoots. Oddly most of this music tends to soundtracks from Italian and German films of the 60's and 70's. They tend to have the perfect mix of sexy-like grooves, future-retro melodies and abstract ethereal vocals. This soundtrack to Missione Hydra is a SUPERIOR example and second only to the soundtrack for the film 3..2..1...Morte (pictured below).
The best place to find these sorts of soundtracks is dustygroove.com.