Actually, Lin, I think it's best to post corrections in a thread. That way, others can see them and add their comments.
Also, that makes the corrections immediately available to everyone.
Use our search engines to look for a thread on the song, and post your comments there. If there is no existing thread on the song, start a new thread. Be sure the word "correction" appears in your message title, if ypu're posting to a thead that doesn't have the word "correction" or "Add" in it.
-Joe Offer-