Hero Metal A Capella! WTF? 25 Tuesday May 2010 Posted by Randy Johnson in music ≈ 2 Comments TagsHero Metal a Capella, van Canto Van Canto is a German ensemble formed in 2006 that are referred to as Hero Metal a Capella, but they do use real drums and not a machine. Five voices and a drummer. Their music has an energy that I actually like. Probably not for everyone though.