Complex sentence: Haynes' main influences are Johnny Winter, who he was introduced to at the age of 15 by fellow Houstonian, Benny Valerio, which is evident in both his fluent and aggressive playing and growling vocals which he tends to harmonize with his guitar.
Split into simpler sentences: Haynes' main influence is Johnny Winter, who he was introduced to at the age of 15 by fellow Houstonian, Benny Valerio. This influence is evident in both his fluent and aggressive playing and growling vocals which he tends to harmonize with his guitar.