Take a look at ~/Music/Previous iTunes Libraries/. There are old copies of your .itl file stored there.
See: https://support.apple.com/en-gb/HT203225
Catalina import iTunes Library.xml from Music app
Take a look at ~/Music/Previous iTunes Libraries/. There are old copies of your .itl file stored there.
See: https://support.apple.com/en-gb/HT203225