Bas Groenendaal has seen 128 bands.

Band Concerts Seen
  Abbath 2 concerts
  Alien Weaponry 2 concerts
  Cryptosis 2 concerts
  Electric Callboy 2 concerts
  Fluisteraars 2 concerts
  Inter Arma 2 concerts
  Jinjer 2 concerts
  Modder 2 concerts
  Nile 2 concerts
  Sanguisugabogg 2 concerts
  Suffocation 2 concerts
  Vltimas 2 concerts
  Wiegedood 2 concerts
  200 Stab Wounds 1 concert
  Aeternus 1 concert
  Algebra 1 concert
  Aran Angmar 1 concert
  Ater 1 concert
  Atheist 1 concert
  Attila 1 concert
  BABYMETAL 1 concert
  Batushka 1 concert
  Benny the Butcher 1 concert
  Birdflesh 1 concert
  Blind Channel 1 concert