He went through changes that ranged from imitating Nat Cole and Charles Brown to finding his own voice in jazz, gospel, rhythm and blues, rock 'n' roll, country, pop and soul.

WSJ: A Performance With Soul

The Muscle Shoals Sound Studio was a recording mecca for rhythm and blues, rock and pop artists in the '60s and '70s.

NPR: The Legendary Muscle Shoals Sound

Ever since she began her career as an acoustic singer-songwriter in the early '80s, Patty Griffin has specialized in sweet, smart ballads with shades of blues, pop, folk and country.

NPR: Patty Griffin in Concert

Gomez are known for sophisticated arrangements of songs that are part bright Brit-pop and part '60s psychedelia, with a dash of loops and electronic sounds and a healthy dose of American blues and roots.

NPR: Gomez: 'How We Operate'