As a GM I have lot of songs that I like to play, and it is a hassle to scroll through them all of the folders, some fit combat, but sometimes I want a specific type of combat music and I don't want to see what I don't need at current time. To fix this issue, I think that allowing the folders to have folders within them similar to the journal tab would fix this issue, OR adding a search feature from tracks you've uploaded.
Something like
>Combat Music
>>[Enemy] fight music
>>Player Themes
>Idle Music
>>Ambient sounds
>>Harold's Songs
Something like
>Combat Music
>>[Enemy] fight music
>>Player Themes
>Idle Music
>>Ambient sounds
>>Harold's Songs