If you send in a collection of songs at once, be sure to list each song individually on Form PA as an alternate title of the collection. The Copyright Office will then index the collection under all the alternative titles as well as the primary name. Use a so-called continuation sheet (available on the website) if you need more space.

For example, here's a collection of six songs:

Title of work: My Secaucus Sweetie and Other Songs

Alternative titles:
My Secaucus Sweetie
Newark on My Mind
Down by Raritan Bay
Bergen County Dream
Meet Me in the Meadowlands
The Weehauken Stomp