Hi guys, I'm ~xwj~ from China.
As you see, I've made a piano in Minecraft. It consists of 744 armor stands and it is very detailed. The body of the piano is made of armor stands with snow plates on their heads. The white keys are end rods and the black keys are levers. The pedals are gold nuggets. Each key has its individual name (k21-k108) and you can change their status by using the /entitydata command. In fact, it is still unfinished. I'm still considering adding new parts and to it.
I've uploaded the world, however, the armor stands are invisible in the world viewer. That is to say, if you want to check it out, you have to download it.
Have fun.

I've played a piece of music on the piano.
Check it out here.--->
https://www.bilibili.com/video/av17942043
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