Damn, none of them appear on LimeWire.

I guess I'll have to wait for your uploads then. I'm more inclined towards English music, so if you have English stuff, please upload, alright?

Err, no Diana Krall though. I think she's more of a jazz artist stuck to a piano. I don't like her voice. Norah Jones is jazz too I think.
I think bossa nova and jazz differ from their instrument usage and mood. Jazz is kind of somber to me while bossa nova sounds very commercial and uplifting. Bossa nova also sounds more uptempo and Brazillian I guess. Lisa Ono stuff is definitely bossa nova, she's quite awesome. I love all her songs I found so far. She also has "The girl from Ipanema".
I get confused deciding whether something is jazz, soul or R&B though.
Classification!
Mika Nakashima:
Seppun - reggae? dance? or R&B? jazz?
Koishikute - soul? pop? R&B? reggae?
Carrot & Whip - pop? dance? reggae? R&B? soul? bossa nova?
Fake - jazz? R&B?