[1][2][3] Isungset was raised in Geilo where he played traditional dance music with his father (accordion) during his high school days.

Moving to Bergen in 1984 led him to be a popular member of a number of Bergen groups, such as Ictus and Tordenskjolds soldater (1984–85), Growl and Gruv (1984-88), Saksbehandlerne and Night and Day (1985–86), Salsa Pati (1985–87), and Supply (1985–88), in addition to periods within the Big Band Emanon from 1986, and his recording debut Amalgamation (1985) with Kenneth Sivertsen.

When crafting his own instruments from Norwegian natural elements such as arctic birch, granite, slate, sheep bells and even ice, he is highly recommended to those sensible to the poetry and simplicity of sounds.

His love for ice music was raised in 1999 when the commission of the winterfestival at Lillehammer asked him to compose and play in a frozen waterfall.

He has ongoing duos with Per Jørgensen, Arve Henriksen, Sissel Vera Pettersen, Didier Petit, Therese Skauge, Jorma Tapio and Stian Westerhus.