By doing as you suggested and typing in a name I have established that at least each individual tune is 'somewhere else' and not lost altogether.
I did transfer the library from my desktop computer to this laptop and the
library is still intact on the desktop.
Is there a sync facility on your itunes- you could connect the laptop and desktop and try that.
I wonder if there is a limit to how many times you can copy over an i tunes file
I'm going to get my grandson to come around and have a look. You know what whiz-kids youngsters are.
I was anxious to establish that the music hadn't vanished for good.
Just click on the 'Blue' links open read further info.
It's important that all your music is located in the one folder only.
Not spread across various locations on your PC / Mac.
Hope this steers you in the correct direction to a fix.