haha sorry! We originally had it the same sounds as the organ but then changed it to be more crystal-like sounds and yea seems it does throw some people off for sure.. so we will probably change/fix that eventually.
Music puzzle solution: if you are facing the organ play the crystal to the right, - then play the middle crystal behind you - then play the crystal to the left of the organ (while facing it) - then play the crystal directly behind you - and then the crystal that is directly across from the first one you hit.. (if you cant make sense of this then... go to 8:08'ish in the vid and tada!)