Again, I dunno. Seems to me that Picasso's Guernica was pretty damn angry. Dick Gaughan often projects vast quantities of anger (some unkind soul described it as singing like he was passing a kidney stone). In a more trad vein, Aunt Molly Jackson was preet good at expressing anger.

Trouble is, it's hard to transmit anger by singing angrily--too many listeners just shrink away.