Consolidating music purchases from multiple Apple IDs
I purchased music over many years from the iTunes store using different email addresses as email systems came and went. I started with an EarthLink email address, then a Mac.com address, and now, for many years, have used a Gmail address. I am trying to get all my purchased music off of my iPod Classic and onto my iMac so I can sync it with my iPhone, but keep running into issues caused by the various Apple IDs (email addresses) used to purchase the music over the course of 10 years. Is there any way to consolidate all those purchases under my current Apple ID? One issue I will run into is that I do not remember the password for the email system or the password I would have associated with those email addresses and my Apple account.
Any help would be greatly appreciated.