While most of the songs on Fossegrimen’s album "Vals til Claire" (2008) are from the 1700s and 1800s, the title track is an original written by David for Claire Elliker-Vågsberg. Fossegrimen provides the music for Scandinavian folk dances, weddings, festivals, and fairs. The group, which includes leaders David and Claire Elliker-Vågsberg; their son, Kurt Elliker (fiddle), Brian Wood (guitar and nyckelharpa), and Carson Krause (bass), wear bunader (traditional Norwegian folk outfits) for special occasions. David Elliker-Vågsberg studied violin and also learned to play the hardanger fiddle while he was in college. He also performs on fiddle and the nyckelharpa, as does Claire Elliker-Vågsberg. The hardanger fiddle, which originated in 16th-century Norway, has four top strings and four to five sympathetic strings and is tuned higher than a violin. The nyckelharpa, literally a “key harp” of 14th-century Swedish ancestry, is a bowed string instrument. It has 4 top strings played with a bow, 12 sympathetic strings, and a set of horizontal “keys” on the neck that the player depresses to fret the strings and change the notes. In 2003, Oregon Public Broadcasting's "Oregon Arts Beat" featured Fossegrimen on a program. Claire and David have traveled to Norway since 2015 to compete in a National contest known as Landsfestivalen i gammaldansmusikk as members of a fiddle group called Naustedalen Spelemannslag. The Landsfestivalen is a festival for which as many as 500 fiddlers and dancers of all ages compete.