In Memory of W.B. Yeats

Auden wrote (or finished) "In Memory of W.B. Yeats" shortly after Yeats died as an elegy to Yeats (and it is one of the best 20th century elegies). However, like Yeats' "Under Ben Bulben," it's also a poem about poetry. Consider in your response how the poem addresses BOTH things.
Also, after reading "In Memory of W.B. Yeats," go back to Yeats' "Under Ben Bulben" and see if you see any similarities or hear any echoes between the two poems; if so, note those in your response.

The poem starts off with beautifully crafted imagery. It’s as though the whole world mourns Yeats. “The brooks were frozen, the air-ports almost deserted,//And snow disfigured the public statues;//The mercury sank in the mouth of the dying day” It’s useful to the speaker that this death did happen in winter as it lends itself so easily to a world in mourning. The next part involving the river flowing and the wolves running however, contradicts this. This then suggests that things continued on, outright calling out that his poetry would continue on regardless of Yeats’ death. “The death of the poet was kept from his poems.”
One of the noticeable points that this and “Under Ben Bulben” seem to have in common is the commentary on calling people to the arts, something Yeats had done at other times as well and is likely an homage to him in this piece as well as a continued call.

With a farming of a verse
Make a vineyard of the curse,
Sing of human unsuccess
In a rapture of distress

A man can only do so much in his life, and should reach for greater, something I recall from “Ben Bulben.” The final lines truly call this to mind: “In the prison of his days//Teacher the free man how to praise.”

Good (and funny) on the setting/mood, and good on one of the main echos of "Ben Bulben," but don't both address and give advice to poets?
Doesn't this poem also say other, more subtle things about the poet and his work than that the work lives on, and what do you think of what this poem says of poetry?