What is the theme of Piano by D.H. Lawrence and what is the style in which he writes it?

"Piano," a poem by D.H. Lawrence, describes a man who is listening to a woman singing and playing the piano.  This experience triggers the man's memory and takes him "back down the vista of years" until he can see himself (in his mind's eye) as a child listening to his mother playing the piano and singing.

The singing woman might "burst into clamour," but the "glamour" belongs to the man's "childish days," when he sat "in the cosy parlour" and sang hymns to the accompaniment of "the tinkling piano."

Although the man yearns for the past, he seems to realize that it is irretrievable, as he says: "I weep like a child for the past."

The poem consists of 3 stanzas, each of four lines.  The rhyme scheme of each stanza is AA-BB.  The lines of the poem are fairly long, mostly from 12-15 syllables each.

The poem is written in clear, standard modern English.  There are several words that evoke the sound of the piano: tingling, tinkling, boom.  There are also several words that tend to give the poem a tinge of romanticism: vista, insidious, appassionato.