Answer: Music inspires people from all professions and walks of life.
Explanation:
In "I Hear America Singing”, the major theme of the poem include growth, dignity and freedom. The poem is simply about the freedom that Americans enjoy. In the poem, we can infer that everyone has their own songs and this means that every profession is important.
The repetition of the word singing implies that every profession has their song and it gives them pleasure when they're singing as they are happy doing so whether they're mechanics, carpenters etc.