I know there are tons of sites out there that list song lyrics that are surrounded with advertisements and pop up ads. I don't imagine the song writers had this in mind when they were writing their songs.
In any case, if someone wanted to analyze the lyrics of a song in a scholastic way, and quoted the source, and perhaps even sent users to where they could purchase the song and give that artist money...
Is this a copyright violation?
Is it different than citing a source in an academic paper?