Q: Purchased music but can't put on iPod

Hi there, new to the forum. Would appreciate help with a problem I'm having with iPod Nano, either 5th or 6th Gen, can't really remember - it has the lightning connection though.

Basically I currently have 1200 or so songs, only 16 or so of which were bought from iTunes on an old account. I've just spent over £50 downloading new content on a new Apple ID but I can't get it transferred across. It won't autmatically Sync, and when I go to 'Sync Music' it tells me it will delete all my old data in order to put the new music on. This music cost a lot of money and I have long since lost the files, two or three laptops ago. This is the first time I have tried to purchase on my new laptop.

Anyone have any ideas? Would appreciate anything as I'm tearing my hair out!

Thanks,

Colin