Levin took part in performing tours all around the world. He became one of the most respected classical musicians of his time in Norway. He took an active part in music education at all ages, led the Norwegian Society of Composers and Lyricists (NOPA), and promoted the art of accompaniment. He was the first rector of the Norwegian Academy of Music when it was founded in 1973, where he was also a professor of interpretation. When the academy moved to its new facilities in Majorstuen in 1989, one of the performance halls was named after Levin.