On May 19, 2015 Sigmund Groven was one of the performers at a concert at Steinhuset (“The stone house”), a Medieval building dating back to the 13th century. The concert also featured singer Tone Elisabeth Braaten, singer and guitarist Lars Klevstrand and pianist Ivar Anton Waagaard. The theme for the concert was “Longing, life and song” and showcased a variety of Norwegian folk songs, old instrumentals and melodies from the past.