Hannes Grossmann

Drummer / Producer

Known from

Blotted Science

About Hannes Grossmann

Hannes Grossmann is a drummer, writer and producer from Nuremberg, Germany. He made a name in the drumming scene as drummer for Necrophagist, Blotted Science, Obscura, Alkaloid and Hate Eternal. Hannes also does session work (live and studio) for many bands and artists in various styles and is an active part in the drumming community, playing clinics and drum festivals (i.e. Meinl Drum Festival 2012, Adams Drum Fest 2013). Besides being busy as a drummer Hannes works as recording-, mixing- and mastering engineer in his own studio MORDOR SOUNDS, where he produces not only his solo work, but also bands from all around the world.

Hannes Grossmann’s
studio in Nuremberg

Mordor Sounds


Born September 8th 1982, Hannes Grossmann grew up in a musical family and started playing the piano at the age of 8. Two years later he chose the drums as second instrument, which soon should become his main passion. By learning different styles of drumming such as rock, jazz, fusion, funk and latin and taking lessons with Canadian teacher Donnie MacKay, Hannes developed an own style by combining all these different musical approaches with extreme Metal drumming.

Hannes’ got his first professional obligation in 2003, becoming a member of German Technical Death Metal band Necrophagist, a band which back then was rather unknown to most people. After recording and releasing the critically acclaimed album “Epitaph” in 2004 the underground status of Necrophagist changed completely: From 2005 until early 2007 Hannes played around 200 concerts with Necrophagist all over the world and gained popularity in the global metal scene.

In 2007 Hannes left Necrophagist in order to finish his master degree in business administration. In order to accomplish his own musical vision, he joined an underground band named OBSCURA. The empty place behind the drums in Necrophagist was taken by drum legend Marco Minnemann, one of Hannes’ favorite and most influential drummers. In 2008 OBSCURA was able to get a worldwide deal with US label RELAPSE RECORDS and one year later the metal music press was stunned by the virtuosity the band showed on their album “Cosmogenesis”, which immediately cracked US billboard charts.

In 2010 Hannes was invited to become part of BLOTTED SCIENCE, an extreme Metal super group featuring Alex Webster (Cannibal Corpse) and Ron Jarzombek (Watchtower, Spastic Ink), with whom he recorded the critically acclaimed EP “The Animation of Entomology” – released in late 2011.

In 2011 Hannes was extremely productive. Not only recording and releasing the BLOTTED SCIENCE record, he both recorded his second album for OBSCURA, entitled “Omnivium”, and also produced his first drum DVD – “Progressive Concepts for the Modern Metal Drummer”.

Hannes is a very active clinician, having played at the Dresden Drum Festival 2011, Meinl Drum Festival 2012, E.D.U. Drum Fest 2012, Ammerland Drum Fest 2012, the Adams Drum Festival in 2013, among other masterclass performances.
Hannes is the author of drum educational book entitled “Extreme Metal Drums”, which was published in early 2013 by Hal Leonard. Hannes received a notice award by Modern Drummer Magazine.

In 2014 Hannes left Obscura in order to fully focus on his new main band ALKALOID, featuring Morean (Dark Fortress, Noneuclid), Christian Muenzner (Obscura, Necrophagist, Spawn of Possession, Eternity’s End), Danny Tunker (Aborted, God Dethroned) and Linus Klausenitzer (Obscura, Noneuclid). After successfully funding the album on Indiegogo with a result of 19,119 € the band released its debut album in early 2015, entitled “The Malkuth Grimoire”.

Hannes Grossmann plays Tama drums, Evans Drumheads,Vic Firth sticks and Meinl cymbals exclusively.


Drummer Hannes Grossman flings precision blastbeats and poly-grooves through shifting time signatures with the casual flexibility of a yoga master.