unable to add new songs to itunes library

Hello jesslawsw1986,

Thanks for participating in Apple Support Communities. We understand that you're trying to add over 600 songs to your iTunes library but are running into difficulty. To sync your library to your new iPhone, follow these steps: Use iTunes to sync your iPhone, iPad, or iPod with your computer

If those are the steps you're following, you mention uninstalling and reinstalling iTunes. When you completed these steps, did you also uninstall the additional components? If not, here's how: Remove and reinstall iTunes and related software components for Windows 7 and later

If you're still having an issue, let us know more:

• Does an alert appear, and if so, what does it say exactly? Be sure to include any error numbers.
• Are you an Apple Music subscriber?

The more details you can provide the better.

Take care.