How do I transfer music on my iPod Touch to my iPad Pro?

ev-dude wrote:

I told him he could do everything he wants on the iPad Pro.

I am afraid that was some bad advice. You really need a computer. You can see if any of these third-party solutions might help (although I doubt it):

Recover your iTunes library from your iPo… - Apple Community

If you bought the songs from iTunes, you can download them again for free:

Redownload music - Apple Support

In that case, you'll have to use another computer to import the CD collection and sync the songs to your device.