Need some help with lounge music, please.

Look up a 2 CD collection called Art Deco.

Also look up a 10 CD set called Music For Bachelor Pads. Space age pop music might work too.

For jazz - look up Kind of Blue and leave it on repeat.

Cantoma - self/titled
Gotan Project - La Revencha Del Tango
Ronny Jordan - A Brighter Day
Ulrich Schnauss - Far Away Trains Passing By
Wes Montgomery - Willow Weep For Me
Bill Evans - Waltz For Debby
St.Germain - Tourist

I'll try to think of some more, good luck.

Random thoughts…mostly jazz…

Clifford Brown and Max Roach - Clifford Brown and Max Roach

Gotan Project - Lunatico

Milt Jackson - The Best Of…

Sonny Rollins - Saxophone Colossus

Miles Davis - In A Silent Way

Kenny Dorham - Quiet Kenny

Coleman Hawkins - At Ease With…

Latin Playboys - Latin Playboys

João Gilberto - João Gilberto (the one with the white cover; small b/w photo in the center)

Lucky Thompson - Lucky Strikes OR Tricotism

Go to SomaFM: Listener Supported, Commercial Free Internet Radio and listen to the Illinois Street Lounge station. Is that what you're looking for? If so, start there. You could stream the station as there are no commercials. All artists/song title/albums are listed as they play. Hope that helps!

Hmm, try the ninjatune.net.home label. Quite a few of good downtempo, jazzy stuff but it's more electronic than it is actual jazz.

Let me suggest Beegie Adair, she's the ultimate Lounge Pianist. Go here to listen to samples.
Amazon.com: beegie adair: Music

Not sure if you mean "slow" reggae or "downtempo" club mixes that are reggae-inflected, but here's another instrumental disc with beats, horns and a reggae-ish vibe.

The Blue Series Continuum - GoodandEvil Sessions

YouTube - The Blue Series Continuum/GoodandEvil sessions-Then Again

Stay with it until the horns kick in. Hope this helps…

Bob Marley - Dreams of Freedom: Ambient Translations In Dub

or try some

Thievery Corporation - Mirror Conspiracy or Richest Man In Babylon
-has a reggae/dub vibe but with lyrics.

I like Geoff Gasoyne album is "Keep it to yourself." Really cool jazz, background/lounge music. Also, here is my "bachelor pad" playlist that I LOVE to have playing in the background when company comes over.

Desafinado (Off Key) 5:53 Jazz Samba Charlie Byrd & Stan Getz
Le Poisson Des Mers Du Sud 4:13 Hoping for Love Isabelle Antena
Summertime 3:20 Porgy and Bess Miles Davis
Bossa J.C. 4:46 Present Tense James Carter
Funky Bahia (w/ will.i.am & Siedah … 3:58 Encanto Sergio Mendes
The New Girl 4:33 Mad Men: Original Score, Vol. 1 David Carbonara
Bossa Nova U.S.A. 2:27 Jazz Collection Dave Brubeck
Vegas Baby 1:25 Fluid Kerry Muzzey
Outra Vez 6:40 Compact Jazz: Best of Bossa Nova Laurindo Almeida & Stan Getz
Take Five 5:24 Jazz Moods - Cool Dave Brubeck
One Mint Julep (Cha-Cha Twist) 3:06 Cugi's Cocktails Xavier Cugat & His Orchestra
Harlem Nocturne 2:15 Nocturnes In The Mood
Soul Bossa Nova 2:45 Big Band Bossa Nova Quincy Jones & His Orchestra
My Romance 6:52 Love Songs Dave Brubeck
Blue Rondo A La Turk 6:44 Jazz Collection Dave Brubeck
Baby Elephant Walk 2:45 Midnight, Moonlight & Magic Henry Mancini
Peter Gunn Mambo 2:27 Mambo Fever Jack Costanzo & His Orchestra
At Last 4:57 Blame It On My Youth Matt Belsante
Guaglione 3:16 Starbucks: Bella Luna Henry Mancini
A Beautiful Mine 4:05 Mad Men: Original Score, Vol. 1 David Carbonara
The Men of Sterling-Cooper 5:39 Mad Men: Original Score, Vol. 1 David Carbonara
Song of India 3:34 Mad Men: Original Score, Vol. 1 David Carbonara
Nocturne 3:33 Moog Rock - Greatest Classical Hits Les Baxter
Bird On a Wire 4:42 Famous Blue Raincoat: 20th Annive… Jennifer Warnes
Desert Rose 4:48 Brand New Day Sting
Summer Samba (So Nice) 3:07 Rain Forest Walter Wanderley
How Many Get Sable 2:19 Mad Men: Original Score, Vol. 1 David Carbonara

I just copied the info from my iTunes playlist - hope you can make heads or tails of the info.
Song Title Time Album Artist

Good luck and I will keep watching this post...
Sproles

Well, no vocals but its electronic dub type music ->

intrusion - the seduction of silence

and in that same genre but this one feels a little less sweet

rod modell - vibrasound

Also you might want to give anything by the detroit escalator company a shot (try his album black buildings)

air is pretty good for this

Here's a huge list of great reggae songs that could be amazing hearing on the lounge, check it:
100 Greatest Reggae Songs

I highly recommend the Gotan Project. I helped a friend open a restaurant/lounge last year and Gotan Project is on heavy rotation for his lounge music; very popular amongst his patrons.