Terje Gewelt, born on June 8, 1960 in Oslo, Norway, is a jazz musician known for his work as a double bass and bass guitar player. He began playing guitar at age 10 and transitioned to electric and acoustic bass by his teens. From 1979 to 1981, Gewelt studied privately with Arild Andersen and played in local jazz groups. In 1981, he moved to the United States to study at the Bass Institute of Technology in Los Angeles. He co-founded the acoustic jazz quartet Forward Motion and played with groups like Full Circle. Returning to Norway in 1989, Gewelt became a prominent figure in the Norwegian jazz scene, playing with Billy Cobham and Misha Alperin. He founded Resonant Music in 1998 and released several albums as a leader, including Hide And Seek (1999) and Oslo (2009).