If you subscribed to Apple Music and downloaded songs for offline listening, you will find the songs are in M4P format. It is AAC file that's copy protected using Apple's FairPlay DRM.
M4P files can only be opened with iTunes on Mac/PC, Music app on Phone/iPad/iPod touch or Apple Music app on Android phone. You must authorize them with the Apple ID you used to subscribe Apple Music.
What to do if you want to play these M4P songs on other players? The simplest way is to convert DRM-protected M4P to MP3, M4A, etc. Boilsoft Apple Music Converter is such an M4P to MP3 converter which allows you to easily convert Apple Music M4P songs to MP3 on Mac and Windows. You can also use it to convert any iTunes songs, audiobooks, etc. since it automatically loads the whole iTunes Library. Learn more: Apple Music Converter for Mac | Apple Music Converter for Windows
Step 1 Download and install
Boilsoft Apple Music Converter is available for both Mac and Windows users. Download and install the correct version.
M4P to MP3 Converter for Mac
M4P to MP3 Converter for Windows
Step 2 Select Apple Music M4P songs
Launch Boilsoft Apple Music Converter, you will find it automatically loads the whole iTunes Library.
If you added Apple Music songs/albums to iTunes library, click Music on the left side and sort all songs by Type. Check the songs marked with "Apple Music AAC audio file".
If you added Apple Music playlists to iTunes library, click the playlist name on the left side and all songs in it will be displayed on the main interface. Check all of them or the ones you want to convert to MP3.
Step 3 Convert Apple Music M4P songs to MP3
Click Convert button to start converting Apple Music M4P songs to MP3. Boilsoft Apple Music Converter converts M4P to MP3 at 16x playback speed and supports multiple output formats: MP3, M4A, AC3, AIFF, AU, FLAC, M4R and MKA. You can also customize output songs bitrate and sample rate as you like. Click Options button to customize filename format, which can contain Title, Artist, Album, TrackID and DiskID.