Depending on your operating system, the installation process varies slightly. For Windows 10 and 11

If you've already downloaded M4A music files from another source, you can easily install them into your iTunes library. Here's how:

With the rise of Apple Music (the streaming service), purchasing M4A files has become less common.

✅ Older iTunes purchases (before 2009) used protected .m4p files. Those will not play on non-Apple devices. Re-download them today—Apple now delivers DRM-free .m4a .