What's the deal with the underwater organ?
Is there anything special or significant about the Underwater Organ by the Quaggan town in Caledon forest?
In the times I've swam by it, sometimes there is a chest nearby, and sometimes there is not; is there some way to use the organ to trigger a chest? Is this anything more than a point of interest?
You reveal the chest by playing a certain song on the organ. This video contains the key sequence, which I've also included in a spoiler tag below:
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