Ooh, relaxing and chilled out!
Although I don't run a salon, I am a big fan of relaxing and chilled out music. So here's some of my favourites:
(1) Era - this is a collaboration between the French composer and guitarist Eric Levi, and the English Chamber Choir. They have a sound not dissimilar to Enigma, in that Latin chants and chillout beats feature a lot in their music.
(2) Vangelis - particularly his "Oceanic" album. This album in particular is very dreamy and chilled out.
(3) Ludovico Einaudi - try his albums "Le Onde" and "Una Mattina" for some sophisticated, chilled out contemporary classical piano music.
(4) Tim Wheater and David Lord - "In Unity" - this is a beautiful album of flute and warm synth strings.
(5) Bliss - this is an English duo including singer Lucinda Drayton, who has a gorgeous voice - I guess you'd describe their music as a fusion between Celtic, New Age, Folk and Indian music. Their albums "a hundred thousand Angels", "Through These Eyes" and "Bliss" are generally chilled out; "You" is a bit more upbeat.
And if you want to hear some chilled out stuff that I've written and recorded, try
http://tunes.ruthmills.me.uk/icemaiden.mp3 and
http://tunes.ruthmills.me.uk/heavenly-dreams.mp3 - am quite happy for you to burn them to CD and play them in your salon - entirely royalty free!