The use of the iPad means we'll have to import into iTunes or try http://www.mediamonkey.com/
As each user has different goals I don't want to upset anyone but I'm OK with keeping my content in my own way and using iTunes when I want to load an Apple thing. Also, since the goals are almost always all over the map, my way is rarely what folk are looking for.
In spite of all that, try MediaMonkey.
I have a large music library of MP3s and CDs (over 300 albums) that:
1) I want to load on my PC (Win 10 v 1511) to listen to the library and as the master control of the library.
2) Copy this library to my iPad Air running iOS 9.2 for listening on this device.
3) Backup library in a standalone format that i can use in case of a disaster.
I'm presently using Winamp (PC) and Picker (iOS) but will happily change to get my music working again.
I thought i was fairly computer literate but at 77 I'm finding that's not as true as it used to be. Sorry if I'm in wrong place but not sure where else to go. Please, any advice or suggestions on what to do or where to look would be greatly appreciated.