iPod 2 30 pin connector transfer to new iPad Air

Music cannot be directly transferred between iOS/iPadOS devices.

Any Music/Media content, transferred from your Windows PC/Mac using iTunes (or Finder on later Mac computers) - or “Paid” material downloaded from Apples iTunes Service - must again be downloaded to your new iPad.

The reason for this intentional limitation, deliberately imposed by Apple, is to protect Copyright. In the case of iPadOS/iOS, Digital Rights Management (DRM) prevents direct copying of copyright material between devices is inhibited. This is intended to prevent the creation of illegal copies of potentially copyright material.

The iTunes Application (or more recent Apple Devices App) on your PC/Mac maintains an authorised copy your media - whether this material is loaded from a CD, or downloaded from the Apple iTunes Service - and media derived from this library can be transferred to your iThings.

Sync iTunes content on PC with devices on Wi-Fi - Apple Support

The syncing model for music on iPods was one-way: from a computer to an iPod.

So instead of transferring music from your iPod to your iPad Air, you would transfer music from your computer to your iPad Air. Hopefully you have been safeguarding and/or upgrading the music library you used to load the old iPod in the first place.

You don’t.

No

You're very welcome.