Multiple Accounts and PC
For a long time, I used another iTunes account on another PC to download songs onto my phone. Aside from the songs purchased from the iTunes store, there were many songs from mp3 files that I downloaded from other sources. Is there a way for me to start downloading songs from my new Apple ID account from my new Mac and still retain the data from the previous account/pc? I do have family sharing enabled between the two accounts.
MacBook Pro, macOS High Sierra (10.13.2)