Something intangible (song, language, etc.)? Ah - yup.
Is it something like the name for a weekday, a month, season, time of festival? No
Is it a title? - as a title of a book or a title of a person? Nein
Well then, is it a language? Nay
Is it a song? Niet
Is it something spoken? Negatory
I believe there was a phrase in LOTR that talked about the songs of Rohan being rich and rolling as their lands, something like that, at least. Anything related to that? 'Fraid not
Is it specific to one race/culture? No
Is it a poem? No
It must then be: The vision that Iluvatar showed the Ainur? I'm sorry, but that is not correct.
A dream? That's a negative
Is it specific to only one individual? It involves a specific individual
Is the involved single individual a hobbit? Yes!
Was the involved hobbit Frodo? No
Was it Sam?
Um ... No. 