To transfer music from your old iPod to your new iPod or iOS device, follow these steps...
Download and install TouchCopy
Connect your old iPod, iPhone or iPad to your computer via the USB cable
Click "Backup All" and then select to "Backup Content into iTunes" (or "Backup into Music" for macOS Catalina and higher)
Once you're happy that music from your old iPod or iOS device has been safely copied, use iTunes (or Finder on macOS Catalina or higher) to sync your updated music library to your new iPod or iOS device
If you are using a Mac or MacBook running macOS Catalina or higher, iTunes has been replaced with the Music app. For the purposes of this guide, replace mention of iTunes with "Music app". TouchCopy provides the option to "Copy to Music", rather than "Copy to iTunes" on macOS Catalina and higher.
You can download the free trial of TouchCopy below, allowing you to try out the software.
To transfer music from iPod to iPod, first use TouchCopy to copy music, videos and other content from your old iPod, iPad or iPhone into iTunes. You can then use iTunes to sync your iTunes library with your new iPod, iPhone or iPad to transfer the music across. The screenshot above shows how TouchCopy displays music on the device you're trying to transfer from...
1. How to transfer music from iPod to iTunes
From here, you can either use:
Backup All: Copy all Music, Video, TV Shows, Podcasts and Playlists from your device to iTunes.
Copy to iTunes: Transfer all of your Music from your device to iTunes
2. Transfer music to new iPod with iTunes or Finder
Transfer music using Windows PC or macOS 10.14 and lower:
When you are satisfied that all your media is safely in iTunes, use iTunes itself to sync all that content with your new iPod/iPhone. This will replace any music already on your new iPod/iPhone with the music that you sync - so make sure all your music is in your Music library before syncing to avoid data loss!
To sync music from iTunes to your new iPhone or iPod:
Connect your iPhone to your computer.
Open iTunes if it does not open automatically.
Click your device icon and click the music header.
Tick the box to enable music syncing and choose to sync your entire library or only selected music.
Once you have copied your iPod music to the Music app with TouchCopy, you can use Finder to sync your music with your new iPod/iPhone. This will replace any music already on your new iPod/iPhone with the music that you sync - so make sure all your music is in your Music library before syncing to avoid data loss! To do this:
To do this, connect your iPod/iPhone to your Mac, then open Finder.
Click your device from under the Locations header in the Finder window.
Click the Music header, then check the box to "Sync music onto [your name]'s phone/ipod".
Choose to sync your entire library from Mac, or only selected music.