How to restore iTunes Library from a recent time machine backup
I have to make room on my internal HD on my iMac. The HD is a 1TB and I have 391GB of music and video etc that are in my iTunes Library. So I decided to move it to a new 5TB external HD which I formatted with 2 partitions. One partition 2.5TB will be my new Time Machine Backups and the other 2.5TB for iTunes Library so I never have to worry about this again. Using the knowledge I gained (?) from a YouTube video I copied my iTunes folder over to the new partition on the new HD. However, there was no library .itl file. So I found an old one but found I am missing playlists and content from iTunes. So I was thinking maybe the easiest way was to do an iTunes restore from Time Machine.
I am hoping that someone can guide me through this as I have already botched things up and want to do it properly this time.
Thanks
iMac (24-inch Early 2009), OS X Yosemite (10.10.1), 3.06 GHz C2D 8gb Ram NVidiaGT130