It all begun when I (I am Martijn, the singer) learned Hans (our guitar player) how to play the guitar. We jammed along until we met arno, who wanted to start a band. He would play the bass and my brother (Jasper) could play the drum. Sodium was born! But when we wanted to participate 'battle of the bands', an event in our school, Hans wasn't allowed to join us because he was in another school. So we needed an extra person. Thomas joined us and played the bass, arno got back to the guitar. That's already a year and a half ago and we still play with the same five people: drums, bass, 2 guitars and some singing (chose yourself between screaming of singing!).