Arvo Part: Spiegel im Spiegel. Carl Vilhelm Holsoe: Paintings.

Michael Collins (clarinet) and Michael McHale (piano) play Arvo Part's "Spiegel im Spiegel". Originally written for violin and piano, the piece was later transcribed by its composer for various other instrumental combinations, including viola and piano, clarinet and piano, horn and piano and even saxophone and piano. The title of the piece translates as "Mirror, (or Mirrors), in the Mirror".
The paintings are by the Danish artist Carl Vilhelm Holsoe.