Studio musician:
1997 Helloween - keyboards  
2006 Manticora - keyboards  
2008 Jorn - keyboards  
Guest musician:
2000-2001 Iron Fire - keyboards, harmonica, backing vocals  
2002-2003 Wuthering Heights - backing vocals  
2006 Wuthering Heights - hammond, keys, accordion, percussion, vocals  
2006 Iron Fire - keyboards  
2009-2010 Wuthering Heights - hammond organ, accordion