Neumann became the focus of public debate in early August 2010 for criticizing the local opposition to a new main power supply running through the fjord area of Hardanger.
Geirr Tveitt: To konsertar for hardingfele og orkester (2002 – soloist with hardanger fiddle) with Stavanger Symphony Orchestra and conductor Ole Kristian Ruud
•
Bergset played the solo part in the recording of the two Hardanger Fiddle Concertos by Geirr Tveitt with the Stavanger Symphony Orchestra in September 1999, under the direction of Ole Kristian Ruud.
Together with Knut Hamre, Nils Økland and Sigbjørn Apeland, Maurseth released the album Rosa I Botnen in 2006, a production with traditional music from Hardanger, performed on fiddles from the 1600'th and 1700's century.
Gunnar Gunnarsson Helland (1889–1976), Norwegian-American Hardanger fiddle maker
Jakob H. Vik: Bumerke frå Kvam i Hordaland, Hardanger Historielags tilleggskrift nr 13, Øystese 1962
With the construction of the Bergen Line, which was completed in 1909, it was decided that there would be built branch lines to two fjords, the Hardanger Line to Hardangerfjord and the Flåm Line to Sognefjord.