So I quoted two lines of an Irving Berlin song in the draft of my novel, and now I'm doing copyright and permission research. I finally found the company that administers permission for Berlin's songs, but it has a fancy (read expensive) website, and since their version of fair and equitable handling of charities' requests for gratis permission is to tell them all "Hell, no!", I don't have high hopes for a response in my price range.

My character will still be in heaven, but alas, her heart is not likely to beat so that she can hardly speak.