Soloist, improvisor, chamber-musician. Playing the: Pigini Bayan Sirius.
Stalheim is internationally recognized as an accordion soloist and since his breakthrough in 1984 he has performed on a numerous CDs and with several international orchestras. He has received several grants, including a State grant for the establishing of emerging artists and two year grant as a composer. Stalheim has been chairman of the Composer Group in Ny Musikk, and is actively engaged in concert with contemporary music. He was in 1995-2004 producer for Norway Management (The Concert Institute of Norway) and has also produced a number of CD’s.
He has also appeared in several stage productions both as performer, actor and composer. He has toured with Bergen Philharmonic Orchestra and BIT20ensemble amongst many ensembles. He played the accordion part in Georg Friedrich Haas/Jon Fosse´s opera Melancholia and participated in Grønne Glimt by Lasse Thoresen as one of the soloist in Bergen International Festival 2014.
He has performed at many festivals and concert-series; Ultima, Borealis, Avgarde, Gjenlyd, World Music Days in Stockholm and Oslo, and in Video Festival in Cannes with Oslo Philharmonic Orchestra. He founded the first accordion festival in Norway; Nordic Accordion Symposium with participants as Matti Rantanen, Martti Rousi, Per Arne Glorvigen, Geir Draugsvoll. He has also been founding the concert series Avgarde together with several other composers in Bergen – where he was the artistic director.
Stalheim has cooperated with several composers and performed works by Unsuk Chin, Georg Friedrich Haas, Steen Pade, Ib Nørholm, Djuro Zivkovic, Glenn-Erik Haugland, Tonje Hernes, Ketil Hvoslef, Arne Nordheim, Lasse Thoresen, Olav Anton Thommessen, Anders Flodin, Therese Birkelund Ulvo, Inga Mei, Rebecka Ahvenniemi, Sigurd Fischer Olsen, Martin Rane Bauck, Matias Vestergård Hansen, Juhani T. Vesikkala, Marius Nesset, Tze Yeung Ho, Magnus Lindberg, Jukka Tiensuu, Terje Rypdal, Pelle Gudmundsen-Holmgreen and Torstein Aagaard-Nilsen.
He has played together with Esa-Pekka Salonen, Mats Rondin, Emilio Pomarico, Ed Gardner, Baldur Brønniman, Alf Årdal, Frances-Marie Uitti, Ricardo Balaguer Gassent, Hans Kristian Kjos-Sørensen, Ragnhild Hemsing, Walter Thompson, Etienne Rolin, Øystein Birkeland, Jesper Juhl Sørensen, Halldis Rønning, Harald Eikaas, John Ehde, Frode Thorsen, Ricardo Odriozola, Einar Røttingen, David Jaxon, Bettina Smith, Kjell Seim, a.o.