copy my music from my MacBook pro to my ipad pro

Yar,

You can use the USB-C connector. See tips specifically for the iPad Pro in this guide:

Charge and connect with the USB-C port on iPad Pro – Apple Support

When you connect to the MacBook, the iPad should appear as an icon in Finder (if you are using the latest macOS, Catalina) or in iTunes (if you are using an older version). If it simply doesn't show up, follow the steps in here:

If your computer doesn't recognize your iPhone, iPad, or iPod - Apple Support

Yar,

Make sure the iTunes/Music library on your MacBook is set up the way you like it. Then connect the iPad via USB-Lightning connector and sync. Use the steps in here: Sync your iPhone, iPad, or iPod using your computer - Apple Support