Antti Auvinen's Karkija for bass clarinet and marimba was a commission of Duo Xylokosmos. The work was premiered on 22 November 2007 by Ingolfur Vilhjalmsson (bass clarinet) and Tobias Kuttman (marimba) in Neumarkt, Austria.

This product includes one performance score (B4 sized loose pages) in a folder.

In the music of Antti Auvinen (b. 1974), a modernist compositional language is fused with a powerful sense of drama and a charged intensity generated through the explosive clash of conflicting tensions. Auvinen's soundworld is multifaceted and employs unusual combinations of instruments and a wide variety of modern, often rough and noisy extended techniques. His rich and expressive use of rhythms extends from the meditative stasis of freely notated fields to the edgy, insistent energy of multiple superimposed rhythmic layers.