If your for-sale MP3 files did not migrate, it means that your MP3 file(s) did not have a rights category assigned at the time of migration to ArrangeMe.com in 2022 (e.g. we didn't know if your MP3 was "Public Domain" or "Original").
If you wish to make your MP3 audio files available again, please log in to your ArrangeMe account and click "Sell A Title" and then "Sell an MP3" to re-publish them.
If you need assistance, please reach out to us at support@arrangeme.com and we will be glad to assist you.
(NOTE: This pertains to for-sale MP3 files only, not demo/preview MP3 audio which is a separate element and may be uploaded to ArrangeMe during the song registration process.)