Nashville, Tenn. (TN Tribune)-Darryl Frierson, one-half of the twin duo the Joy Boyz, passed away. From the Malaco Music Group bio on the Joy Boyz:If family groups are ubiquitous in gospel music, brother groups are less common, singing twin brothers even less so, and singing twin brothers who stand less than 4 feet tall apiece, almost unheard of. But that’s what makes the Joy Boyz distinctive. Diminutive in size though not in sound—physically, they are a 180 degree difference from the portly Edgar and Edward O’Neal of the O’Neal Twins—the charismatic Donnie and Darryl Frierson make a joyful noise. The…