switch iTunes library from one external drive to another external drive
I WANT TO TRANFER MY ITUNES LIBRARY FROM ONE EXTERNAL DRIVE TO A NEW EXTERNAL DRIVE, WHAT IS THE CORRECT PROCEDURE?
MacBook Pro 15″, macOS 10.13
Hold down the option key on a Mac when starting iTunes and choose an alternate library file. See HT201596: Open a different iTunes Library file or create a new one for more details (retired document, archived version).
For more info, see:
Empty/corrupt iTunes library after upgrad… - Apple Community