As a Lover of DJ Max, this app is wonderful

This app is a dream come true. I can take the music I own and play it in a rhythm game the way I have imagined since my obsession with DJ Max Portable on my PSP.
I have minor to no issues with the gameplay customizations. Love it.
I wish the final scoring system of the songs included a grade, and I wish there was some sort of badge I could collect for achieving a max combo. Doesnt ruin the game for me without it, though.
HERE IS MY BIGGEST COMPLAINT. Fix this, and we got a five star review comin at ya. I cannot add new MP3s to my library for use in this game. It refuses to believe that they are not iCloud tracks. I have albums that I had on Apple Music before buying the MP3s (via vinyl) as well as albums added fresh as MP3s, and neither works in the game. Deleted the game and redownloaded, same issue.
I have 10 thousand songs that were present when I first downloaded the game, so it isnt like Im without music to use. But man, I wish I could play the albums I just discovered this month on this.

Kellynoso about BEAT MP3 2.0 - Rhythm Game, v1.2.8