How would you re-design the piano to work outside of Earth's gravity?

Would a piano work on the space station? Would the strings vibrate differently?

Or let's say you got a piano up to the moon. You'd have to play it much differently In the moon's gravity. Not only would the hammers work differently, but the strings might vibrate differently as well.

So how would you re-design the piano to work outside of Earth's gravity?

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The question is, am I making music or just playing a bunch of notes?