M4A files are standard for Apple devices but are also compatible with most modern Android phones, Windows Media Player, and VLC.
The file extension suggests you might be listening to a downloaded or ripped version. The audio quality of an m4a is usually good (often better than MP3 at the same bitrate), but the digital tag might be stripped of the high-resolution masters found on streaming services. Regardless, the energy of the track translates regardless of the file format. 01 Not Like Us m4a
Moreover, the music industry is watching. The preference for M4A over MP3 indicates a consumer base that cares about audio fidelity. As streaming services standardize lossless audio (Apple Music already uses ALAC, a variant), the legacy of the humble M4A file will only grow. M4A files are standard for Apple devices but