From the Museum of Modern Art, New York, USA:
This composition shows the open living-room window of Matisse’s house at Issy-les-Moulineaux, outside Paris, with his son Pierre practicing the piano. A candle sits on the instrument, illuminating a triangle of lawn. In the bottom left corner is a representation of one of Matisse’s sculptures, Decorative Figure (1908), while the severe “teacher” in the opposite corner is actually a representation of the painting Woman on a High Stool (1914). Together they afford a contrast of sensuality and hard work and, reinforced by the metronome on the piano and the candle, suggest the passage of time.