Q: Updated to El Capitan, now there is no music in my iTunes library (ripped music and purchased).

I have a couple thousand songs that I have ripped to my iTunes library and about 900 songs that have been purchased. I was able to restore the purchased music, but the playlists I made, and all of my ripped music isn't there. How do I restore the songs? I backed up my Mac on Time Machine before updating, but there has to be another way, right? Thanks for any help you can give.