How can I move my Apple Music library to a new iMac?

If your library is consolidated, and stored in a single folder, you can copy the iTunes folder from one Mac to another using a Usb drive or external drive. Then hold the option key on the new Mac while opening the music app there, and point it to the iTunes Library.ituneslibrary file in the folder you copied.

click here ➜ Move your iTunes library to another computer - Apple Support

If it's not consolidated, you will need to consolidate it and make it portable before you can move it.

click here ➜ Make a split library portable - Apple Community

You might also look at Managing your Mac media libraries - Apple Community for some post iTunes > Music transfer advice.

tt2

praxisnerd wrote:

Thanks! That worked. Listening to music on my new iMac.

You're welcome, glad it worked.