Hmm. Given that Jemplode soups are just playlists, it would be very possible to implement soup mode for mp3tofid by just creating a symlink tree within the mp3 directory tree. mp3tofid will recognize the symlinks and build fid playlists from them.

The symlink tree could be created by mp3tofid or by another binary or script.

I'll take a look at jemplode to see what it does ...

Pim