The group was founded in Stockholm in 1978 by Ingvar Hallgren, Anders Holdar, Jan Hellgren och Martin Steisner.
[1] Its members had worked as percussionists in the military services in Sweden, and their aim was to perform percussion chamber music.
More than 240 works were written for the group, by composers including Sofia Gubaidulina, Sven-Erik Bäck, Sven-David Sandström,[4] and Georg Katzer.
In 2015, the Stockholm University College of Music Education took over the administration of this collection of instruments, and in 2019 it was made available to musicians through the Kroumata Percussion Center.
[7] When Kroumata was dissolved, the members were Roger Bergström, Pontus Langendorf, Ulrik Nilsson, and Johan Silvmark.