The word singing in the title "I Hear America Singing" is used to emphasize the importance of how singing a song influence people as it brings people from diverse backgrounds together. It is shown to emphasize its importance.
Explanation
'I hear America Singing' is a poem written by Walt Whitman.
The aspect of the poem is about hard work, signifying the work of laborers during the time in which the poem is written.
Here 'singing' is used to convey three inner meanings.
· 'Singing' is used because it is believed that music is something that connects people of various expertise together as it is the world's universal language.
· Repeating this word creates a rhythmic motion as the song is sung by different people.
· To show the importance.