In macOS Catalina, iTunes has disappeared. It’s been replaced by the new Music app, which is a version of the iOS Music app. You could never call iTunes “beloved,” but it did its job, and had plenty of power hidden inside its confusing and bloated interface. The Apple Music app, on the other hand, is rather basic. But it still lets you do one thing that remains impossible on iOS: You can add your own music to your library. And yes, it will then sync that music to your iDevices. Let’s see how.