Jan has played the drums since the age of five. It picked up when he joined the school marching band, playing the bass drum. As the bass drum turned out to be a bit too big for the junior, he switched to snares. He was one of the founders of the Bullmastif Blues and Rock Band and played with them over the first years in addition to several other smaller projects and various bands.
His previous instruments, besides drums, include recorder, alto and tenor flute. He has also played snare and parade drums in the Norwegian Navy band.
Since 2010 he has been the keeper of the beat in RCB