Depends on the style of music...

Country rock: John Prine or Steve Earle or both

Folk: Paul Seibel or Tom Waits or both

Blues: Taj Mahal or Buddy Guy or both

Old Time/Bluegrass: Ricky Scaggs or Emylou Harris or both

Pure country: Randy Travis or Loretta Lynn or both

Alt: Wilco or Poco or both

New Age: the late Michale Hedges

Instrumental: Leo Kotkee

B~