Q: iPad music won't download

Hello there, SpecialBubz.

You may want to delete the tracks that haven't completed downloading and then follow the instructions in the following Knowledge Base article for downloading past purchases:

Downloading past purchases from the App Store, iBookstore, and iTunes Store

http://support.apple.com/kb/HT2519

If your issue with the Music App persists, feel free to review the information located here:

iOS: Understanding multitasking

http://support.apple.com/kb/HT4211

Of specific use in troubleshooting try:

Additional Information

Note: Multitasking is supported on iPhone 3GS or later, iPod touch (3rd generation or later), and all iPad models using iOS 4 or later.

If an app unexpectedly quits, doesn't respond to your input, or doesn't perform as expected, do the following, testing after each step:

1. Check for app updates.
2. Restart your device.
3. Force the specific app to close.
4. Update your iOS device.

If you continue to experience issues with an app from the App Store, see this article.

Thanks for reaching out to Apple Support Communities.

Cheers,

Pedro D.