Question: What group did the American musician and songwriter co-found with his brother, to whom the opening track of Songs for the Incurable Heart was dedicated?
Sentence (from "Dimebag Darrell"): Darrell Abbott (August 20, 1966 – December 8, 2004), also known as Diamond Darrell and Dimebag Darrell, was an American musician and songwriter who was a co-founder of Pantera alongside his brother Vinnie Paul, and founder of Damageplan.
Relevant evidence: Yes