Hmmm... Sorry, I was confused. Lounge music is traditionally acoustic.

After listening to the music on that website, you are thinking of Muzak (elevator music), for sure. It is instrumental jazz/bossa nova type music, with some warm pads thrown in there. Lounge music is actually more like a sound between big-band standards (Frank Sinatra) to true jazz (Billie Holiday, etc.).

I have no idea where to get Muzak, though... it's kind of not well-appreciated here, at least. It's often the butt end of music jokes. Hahaha. Good luck in your search.