Some of these categories are a tad broad, like soul and jazz. With Soul, there's the good stuff like early Motown, Stax/Atlantic artists like Wilson Pickett, 70s funk and even some of the 70s Philly sounds. Then there's all this watered down cak under the R n B label like Usher and R Kelly who arent fit to lick sh*t of the shoes of Otis Redding and Marvin Gaye.

There are also a huge number of jazz styles ranging from crappy soul jazz/smooth jazz that you hear in cocktail lounges and (not that I go to these much) through jazz fusion to pure jazz styles e.g bebop, post bop..

Even with techno, you can find cheesy 'House' for the Ibiza crowd e.g Venga boys and that crappy Euro-trance at one end and at the other you can find classy stuff like Sasha and Digweed's Northern Exposure albums, Orbital and Underworld.