One thing I have,nt noticed mentioned yet, is whether certain "wrong" words or phrases are used, are for the flow of the song tune, or for some other effect. My grammar is far from perfect but when I confined myself to poetry, I tried to be correct. Now that I write songs I go with whatever seems to flow best. As long as I am reasonably sure that I am communicating what I want to convey, I could care less about the grammar. Sorry joe !.