Member:
1998-2003 At Vance - vocals  
2003-NA Empty Tremor - vocals  
2005- Hartmann - vocals, guitars, keyboards  
Studio musician:
2001 Rhapsody Of Fire - backing vocals  
2004-2007 Genius: A Rock Opera - choir  
2005 Helloween - backing vocals  
2010 Magic Kingdom - backing vocals and epic choirs  
Live musician:
2008 Avantasia - vocals  
2010 Avantasia - vocals  
2011 Avantasia - guitars  
2013 Avantasia - guitars  
Guest musician:
2001-2002 Avantasia - vocals  
2002 Genius: A Rock Opera - vocals  
2003 Aina - vocals  
2004 Magic Kingdom - vocals  
2004 Iron Mask - vocals  
2006 HammerFall - backing vocals  
2006 Lunatica - vocals  
2007-2010 Avantasia - vocals, guitars  
2011 Edguy - backing vocals  
2012 Pellek - vocals  
2012 Vorpal Nomad - vocals  
2012 Dreamscape - vocals  
2012-2013 Avantasia - guitars, vocals  
2014 Edguy - backing vocals  


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