Spelling of titles on workpages

[ClumsyPianist]

Example: the workpage for a book of songs will obviously list a number of song titles. Sometimes, song titles contain poetic language, nonstandard grammar, nonstandard contractions (perhaps to fit the melodic line), and so on. In general, should lists of song titles adhere to the spelling given in the book, or should they expand the nonstandard contractions, fix the grammar, and so on?

I'm pretty firmly on the side of "spell it just as in the book (except obvious typos)", so when I ran across a page where song titles had been altered to clean them up, I almost decided to go through the list and revert them to the way they're printed. But then I thought – I'm new here, so I'd better check.