Københavns Post-Orkester (KPO), the Copenhagen Post Orchestra, is a uniformed amateur concert band founded in 1922 by postal workers in Copenhagen. Known for performing in the red uniforms of the Danish postal service, the orchestra now counts around 60 musicians and plays a varied repertoire spanning musicals, film music, marches and classical works. It belongs to the Danish Post Orchestra Federation and regularly performs at concerts and public events.
The Dutch North Sea Symphony Orchestra joins two Copenhagen orchestras for two concerts at Den sorte diamant.
The Dutch North Sea Symphony Orchestra performs two joint concerts with Copenhagen's Post Orchestra and Police Orchestra.