The Groot Omroepkoor (Netherlands Radio Choir) has always been, since it was founded shortly after the Second World War, the only choir in the Netherlands that performs the symphonic repertoire for large choirs at professional level.
The choir is closely associated with the Dutch public broadcasting world and regularly sings in radio concerts series, notably the NTR Saturday Matinee, AVROTROS Vrijdagconcert and Het Zondagochtend Concert (The Sunday Morning Concert). The repertoire in these series ranges from contemporary music (for instance commissioned works by Dutch composers and premières of present-day international composers such as MacMillan, Henze and Adams), to works from the Nineteenth and Twentieth Centuries and opera.
The choir has for long been allied to the Royal Concertgebouw Orchestra: recent joint concerts include Mahler's Symphony No. 3 conducted by Daniele Gatti in January, 2015, and the concert performances of Wagner's Lohengrin under the baton of Sir Mark Elder in December, 2015.
Chief conductor The Groot Omroepkoor is Klaas Stok.