Gregg Allman was an influential figure in the development of Southern rock and blues music. As a key member of the Allman Brothers Band, he contributed significantly to the band's signature sound with his distinctive blues-infused vocals and keyboard playing. Allman's solo work continued to explore these genres, with albums like "Laid Back" and "I'm No Angel" receiving critical acclaim. Across his career, Allman's impact on American music was significant, blending rock, blues, and country to create a unique and enduring sound.