This occurs because iTunes was as a standalone app starting with macOS 10.15 Catalina (released in 2019). Modern macOS versions use a different system for media management. 2. Is There an "iTunes 10.13.99"?
Look for a file named: iTunes10.1.3.dmg (Approx. 88–110 MB) download itunes 101399 for mac free
Connect your iPhone or iPod to your Mac and open Finder [2]. Your device will appear in the sidebar, allowing you to sync music, backup, and restore just like you did in iTunes [2, 4]. This occurs because iTunes was as a standalone