Complex sentence: The service works only if the files are in a OneDrive folder named "Music" and otherwise can't detect any other songs and currently only supports MP3, M4A (AAC), and WMA files.
Split into simpler sentences: The service works only if the files are in a OneDrive folder named "Music" and otherwise can't detect any other songs. It currently only supports MP3, M4A (AAC), and WMA files.