4:23

Hannes Grossman - Anticosmic Overload (Drums)

54:24

OBSCURA - 'Omnivium' (Full Album Stream)

6:49

Hannes Grossmann | Alkaloid - In Turmoil's Swirling Reaches (drum playthrough)

6:16

Sebastian Lanser - Obscura "Mortification of the Vulgar Sun"

4:51

MEINL DRUM FESTIVAL 2012 - Hannes Grossmann - Part 1

26:07

Austrian Drummer Aaron Thier's Epic 26-Minute Drum Solo!

8:26

Jazz drummer reacts: David Diepold (Obscura)- Vortex Omnivium

6:09

Hannes Grossmann - PHOENIX RISE - Of Glowing Again (Drum Playthrough)