1995- Silent Voices - keyboards  
2001-2003 Requiem (FIN) - keyboards, vocals  
2002- Sonata Arctica - keyboards  
2003- Mental Care Foundation - vocals  
2005-2007 Graveyard Shift - vocals, synthesizers  
Guest musician:
2005 Requiem (FIN) - vocals  
2006 Winterborn - hammonds  
2006 Altaria - keyboards  


20.03.2011 Sonata Arctica
15.12.2004 Sonata Arctica

Personal information

Born on: 21.10.1978

Henrik "Henkka" Klingenberg (born October 21, 1978 in Mariehamn Åland, Finland) is a keyboardist and singer. He joined the Finnish power metal band Sonata Arctica in late 2002 and currently resides in Kokkola, Finland, when not on tour.

Keyboardists he has listed as his favourites include Kevin Moore, Jon Lord, Jens Johansson and Matt Guillory. He claims that his musical inspiration is taken from life itself.