Personally, I thought the big pack was a bad idea that offered only benefit: easily being able to “delete all”. Having one-file-per-song makes it much easier to keep each file up to date.
The only suggestion I’d make is each time you update a file, give it a version number; toss v2, v3, etc. onto the end so we can always know if our file is up to date.
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!