In the first place, you should download and install the right version of AudFree Amazon Music Converter on computer. Once launched, AudFree will present you with the Amazon Music web player, and what you need to do next is using the "Sign In" option to log into your Amazon account.
Whereafter, go to "Menu" icon that is shaped by three line on the top right of AudFree's main screen. From its drop-down list, choose "Preferences" and then to "Advanced" panel to do output settings. To convert Amazon Music to MP3 files, please select "MP3" from the pull-down menu of "Format" as Amazon Music export format, and go further to customize channel, sample rate, bit rate, and more to your requirements.
Once formatting is done, please access the Amazon Music library to search playlist or album you love. And then, open it and click a "+" icon to upload Amazon Music to AudFree. If you don't want to convert the whole playlist or album, you can uncheck the undesired tracks from the conversion list.
In the last place, you just simply press the "Convert" button to let AudFree Amazon Music Converter to locally locally download music from Amazon to MP3 files. During the process, you can get back to the music library to add more playlist for conversion if any need. Be patient and wait for the conversion to complete.