that's creative - well done!
Thank you! Sneaking in a gift code on the forum gets more tricky every day *chuckles*
That one took me about an hour (fortunately, I'm not being paid :p), which mainly consisted out of searching the internet for a free on-line music tool that stores the result (and thus saves you the risk of downloading random files from the internet).
I've absolutely no idea though!
I'd give you a hint, but I think that might be a bit early. Are you out for the game (LBA1), or just having fun solving the riddle?