The classical orchestral repertoire, which is the core of all music, is fundamental to how Bergby shapes music in all genres.
Ingar Bergby has regular engagements with classical and new orchestral repertoire.
Bergby was permanent guest conductor of the Bergen Philharmonic Orchestra from 2003 to 2008 with responsibility for Norwegian and Nordic repertoire. In addition to Norwegian contemporary music, Bergby here performed classic Norwegian works by Svendsen, Tveitt, Grieg, Hovland and Halvorsen. He also performed international symphonic repertoire such as Sibelius, Nielsen, Ravel, Stravinsky, Prokofiev, Nørgaard, Pettersson
During the 2005 Festivals, he directed the first full performance of A glass bead game by Olav Anton Thommessen, to great success and attention. The work is a full-length orchestra performance consisting of six major compositions.
A major project with Bergen Philharmonic Orchestra was the world premiere of Bullseye by Olav Anton Thommessen, Hokkaido Hagar for the piano and orchestra of Knut Vaage, and Olav Berg's concert for bass and orchestra. Bergby's interpretation of Rolf Wallins Act for symphony orchestra, led to that the work later was taken on a European Tour.
As chief conductor of the Värmlands Sinfonietta, Bergby conducted several of Mozart's most important symphonies, the London symphonies of Haydn, and all the symphonies of Beethoven, Schumann and Brahms.
As Norwegian profile conductor in the Norwegian Broadcasting Corporation (KORK) in 2009-10, Bergby conducted all of Brahms' symphonies. He received the KORK award for this production. The award was given to "an established performer who has contributed to innovative and great musical experiences".
- Morgenbladet about A glass bead game
- «BIT 20… was probably the most fantastic: ensemble, energy and precicion both from the players and from the young conductor Ingar Bergby! The BIT 20 Ensemble seems to be of the same quality as the Modern Ensemble, and we would love to see them invited to Peris in the near future. " Le Monde 26.3.96, Renaud Macarte.