Backup iTunes
I have an extensive iTunes library (iTunes Music folder is 73G) on an old MBP running OS 10.11. I don’t have enough room on that hard drive for Dropbox, although I do have plenty of room in my Dropbox account, so generally I upload directly to Dropbox. For backing up iTunes, though, I don’t know how to get around this problem of not being able to duplicate the library on my hard drive first.
I did try to copy it to a PC, but much of my iTunes library is from my own sources and not purchased from iTunes, and I only ended up with ITunes-purchased items.
I don’t necessarily need to sync, but at least just copy the existing library. I don't use Time Machine. What's my best option?
MacBook