Thank you all for your comments and suggestions. I was planning on having it flow into a pond inside the corner of my raised bed garden area. I had thought about a rubber, plastic, or metal pan on the inside for the water to flow out into a wide fan, then down into the pond. I wouldn't let the water touch the inside wood of the piano. I am sure after a while it would deteriorate over time from outdoor elements and water splash. But I would still like to try it. I will let you know if this plan gets off the ground, so to speak.
