Problem with expanding the sound room

I re-pointed I guess you could say the sound room table, and tried to add a sound to it the Song ID was 2F (I believe it’s empty in the FE7 Song List) and it is grayed out, is there a way to fix this?

you need a hack of some sort that unlocks the sound room

This should make all songs in the Sound Room available:

This will make the dashed out/locked songs unlocked and playable by default: