The Department of Musicology (or The Music History seminar as it was originally called) was founded in 1948 and is the oldest musicology department in Sweden. The first professor was named Carl-Allan Moberg (1896-1978). He contributed with groundbreaking achievements in Western liturgical music in the Middle Ages and Swedish folk music. When Moberg retired in 1961 he was succeeded by Ingmar Bengtsson (1920-89). Bengtsson studied musicology for Moberg and achieved his Ph.D. in 1955 with a dissertation on Johan Helmich Roman. He worked hard to spread the knowledge of older Swedish music, and was editor of the series Monumenta Musicae Sveciae. Bengtsson was also interested in psychology, and in the 1970s he started a rhythm research project along with the psychologist Alf Gabrielsson.