Answer:
"Long after it was heard no more"
Explanation:
The poems "The Solitary Reaper" and "Ode of the Grecian Urn" shares the theme of life being frozen and still in time. In the poem "The Solitary Reaper", William Wordsworth presents the picture of a young woman who is reaping the field. The poet adds that the picture of the woman will stay in the mind of the poet throughout his life. The stillness of this thought presents the idea of frozen life. In John Keats' "Ode to Grecian Urn", the poet presents the scene in which each and every part is still and frozen.