I don't know if it has a completely concrete answer but the sound of a piano is pretty fluid. It can go from peaceful and calm to passionate and emotional depending on the piece. But the most simplistic answer would be words like: Soft, feathery, brassy, etc.
The poet is describing the Summer time of the year.
Answer: Option D
<u>Explanation:</u>
William Wordsworth poem ‘The Sun Has Long Been Set’ is a beautiful poem which describes the serene nature and depicts romanticism.
From details mentioned by the poet in the poem, we can figure out that it is the summer time of the year. “There's a cuckoo, and one or two thrushes” the bird cuckoo can be seen only during the summer season, it is the only time when we get to hear cuckoos.
Apart from this, the poet have described the month of June and the city London; it is during the month of June when summer starts in London.
