ROCK:
Badfinger (classic rock)
Cinderella (hair/glam metal...sounds more like hard rock though)
Stryper (Christian metal)
Chuck Berry (classic rock)
Iron Maiden (80's metal)
Iced Earth (thrash metal...not sure what you'd consider them exactly)
Ratt (80's metal)
Tesla (hard rock)
Scorpions (hard rock)
Led Zeppelin (hard rock)
The Beatles (classic rock)
Dick Dale (surf rock)
BLUES:
Melvin Taylor (Chicago blues)
Robert Johnson (delta blues)
Robert Randolph (not sure on his sub genre)
Eric Clapton (blues-rock)
Stevie Ray Vaughan (Texas blues)
Tab Benoit (a Cajun kinda blues--not sure what the name of his sub genre would be)
Jimmie Vaughan (Texas blues)
COUNTRY:
Brad Paisley (modern country)
Chet Atkins (classic country)
Jerry Reed (classic country)
Merle Haggard (classic country)
Big & Rich (modern country...with a rock edge)
Cross Canadian Ragweed (red dirt/Texas country)
Darius Rucker (modern country...crossover artist)
Ricky Skaggs (bluegrass)
Bradley Walker (bluegrass)
Katrina Elam (modern country)
Gretchen Wilson (modern country)
Buck Owens (Bakersfield country)
JAZZ:
Django Reinhardt (gypsy jazz)
Diana Krall
Nat King Cole (some kind of swing--not entirely sure what he'd be considered)
Frank Sinatra (probably labeled as swing or something like that)
Wes Montgomery (not sure what sub genre he'd be)
Mike Stern (some kind of real weird guitar jazz...honestly--his stuff sounds like no one else's!)
To make it clear: I'm NOT sure on all of the sub genres...especially for some artists! And, trust me--I listen to a lot more than just these artists!