Music for organ has long been an important part of the Protestant liturgy. After the Calvinist-led Reformation in the Low Countries, community hymn singing was essentially the only acceptable kind of music. Although not universally approved of, the organ was nevertheless introduced as an accompanying instrument. The many organs in the Dutch churches were often equipped with several stops, and quite a few of these have been preserved to the present day. A famous Dutch composer of organ music was Jan Pietersz Sweelinck. Organist Jan Zwart (1877–1937) was the first to play Sweelinck’s music on Dutch radio. His popular disciple Feike Pieter Asma (1912–1984) also promoted organ music in the 20th century.
Historical Dictionary of the Netherlands. EdwART. 2012.