Final answer:
The frequent subject of impressionistic art and music that you're asking about is Rural Landscapes, with a focus on ordinary life and nature scenes.
Step-by-step explanation:
A frequent subject of impressionistic art and music is Rural Landscapes. The Impressionists focused on capturing the essence of contemporary life and natural scenery. They rejected the hierarchical value assigned to subjects by the Academy, such as history painting, and instead highlighted the worthiness of landscapes and genre scenes. The ordinary subject matter and the attempt to capture a moment in time, much like a snapshot, were significant elements of their work.
This included capturing the movement of life, the changing qualities of light, and scenes depicting the spectacle of modern life, including both the city and the countryside. The impressionists painted a variety of subjects including everyday life and rural landscapes.