Winners of the First Prize and five Special Prizes at the Wigmore Hall International String Quartet Competition 2025, Swedish-Norwegian string quartet Opus13 is one of Europe’s most exciting young ensembles, praised for their vitality and rich palette of colors. Formed in 2014, the quartet comprises Norwegian violinists Sonoko Miriam Welde and Edvard Erdal, violist Albin Uusijärvi, and cellist Daniel Thorell, both from Sweden. They first garnered international attention when they were awarded Second Prize at the Banff International String Quartet Competition in 2022. The following year, they received Norway’s prestigious Equinor Classical Music Award, joining a distinguished line of previous recipients including Leif Ove Andsnes, Lise Davidsen, and Vilde Frang.

They have performed at concert series and festivals such as the International Chamber Music Festival Utrecht in the Netherlands, Chamber Music Northwest in Oregon, East Neuk Festival in Scotland, Yeulmaru and Yonsei Chamber Music Festivals in South Korea, Rusk Festival in Finland, and most of the major chamber music festivals in Norway, including the Bergen International Festival, and the Stavanger, Rosendal, Trondheim, and Risør Chamber Music Festivals.

Opus13 has collaborated with leading international musicians such as Janine Jansen, Olli Mustonen, Julian Bliss, Alisa Weilerstein, Tabea Zimmermann, Jonathan Biss, and Anne Sofie von Otter. They receive guidance and coaching from Bjørg Lewis and Berit Cardas of the Vertavo Quartet, as well as from Tim Frederiksen.

Opus13 are the founders and artistic directors of Vinterspill på Lillehammer, an annual chamber music festival in Norway’s Olympic town of Lillehammer.