The first competition was won by the pianist Kjell Bækkelund, the second contest was held in 1956 and was won by Arve Tellefsen.
Arve Henriksen | Arve Tellefsen | Arve Moen Bergset | Arve Juritzen | Arve Johnsen | Arve Haugen |
Sommerro has since that time performed on his own, with various groups, and as an accompanist for, among others, Erik Bye, Sigmund Groven, Geirr Lystrup, Halvdan Sivertsen, Bjørn Alterhaug, Dalakopa, Arve Tellefsen, John Pål Inderberg, Palle Mikkelborg, Åge Aleksandersen, Arne Domnerus, Aly Bain, and Choeur Grégorien de Paris.
He collaborated with artists such as Claude Frank, Pnina Salzman, Roland Pontinen, Staffan Scheja, Bengt Forsberg, Wolfram Rieger, Peter Jablonski, Pavel Glilov, Gerard Poulet, Zachar Bron, Guy Braunstein, Ulf Wallin, Arve Tellefsen, Jan Stanienda, Bernard Greenhouse, Gary Hoffman, Alexander Rudin, Torleif Thedeen, Karl-Heinz Steffens, Jerzy Maksymiuk, Nikolai Dyadura, Noam Sharif and Agnieszka Duczmal.