Camille Saint-Saëns - The Cuckoo in the Depths of the Woods

Le coucou au fond des bois (The Cuckoo in the Depths of the Woods):
Two pianos and clarinet: The pianos play large, soft chords while the clarinet plays a single two-note ostinato, over and over; a C and an A flat, mimicking the call of a cuckoo bird.
[from Wikipedia]

Artwork: Remedios Varo,"Creation of the Birds"
Played by: French National Radio Orchestra (Pierre Carbidier)