We own a number of, and often put on, one of the Mr and Mrs Smith - Something for the Weekend CD collection available from http://www.mrandmrssmith.com/shop/category/music
They are a sumptuous selection of smooth soul and acid jazz that make excellent background music, pleasing to the ear without being distracting.
Off topic - the Mr and Mrs Smith website (http://www.mrandmrssmith.com) is a directory of boutique and luxury hotels and is well worth a browse if you are looking to treat your Mr or Mrs Smith to a sexy weekend away. We've booked through it many times :-)