Hi,
Can you play this song in iTunes? Make sure you can play this song in iTunes normal.
Our UkeySoft Apple Music Converter can convert those that iTunes or Music Apple can play.
If you have any question, please send email to us support@ukeysoft.com Send us screenshot.
Yes, UkeySoft Apple Music Converter not only can convert Apple Music, iTunes M4P songs, but also can convert Audible AA or AAX audiobooks.
Guide: https://www.ukeysoft.com/music/audible-audiobook-to-mp3-converter.html