Trondheim 44,600), and Tiller (population: 3,595) were all merged with the city of Trondheim (population: 56,982), which nearly doubled the population of the municipality. A transfer of Klæbu (population: 6,050) to Trondheim is planned for 1 January 2020. The coat-of-arms dates back to the 13th century. To the left, there is an archbishop with his staff and mitre in a church archway. On the right, a crowned king holding scales in a castle archway. These two pictures rest on a base which forms an arch. Underneath that arch, are three male heads which symbolise the city's rank as Norway's first capital
Trondheim oldest theatre still in use in Scandinavia. The city also features an alternative theatre house Teaterhuset Avant Garden, and the theatre company Teater Fusentast. Trondheim has a broad music scene, and is known for its strong communities committed to rock, jazz and classical music. The city's interest in Jazz and classical music are spearheaded by the music conservatory at NTNU which has been called one of the most innovative in the world, and the municipal music school, "Trondheim Kommunale Musikk- og Kulturskole". The Trondheim Symphony Orchestra and the Trondheim Soloists are well-known. The city also hosts a yearly Jazz festival,