I didn't know there was a band called just piano! I've heard of a hybrid piano that has 20 other instruments in it though!
tell about please 20 instruments
Oh man, the hybrid piano is amazing! It's like an advanced piano that can do so much more than a tradition piano. It doesn't use strings, it uses electronic sounds
Tell 20 instruments in one by one tell 
It's like a band of piano consisting of instruments like violas, cello, organ, hammers, cymbals, etc.
Tell more 15 instruments man  
Hybrid pianos are the next new thing, like hybrid cars!
yes what time of the 20 instruments 
Perhaps other than pianos, you can try other related instruments, like the organ or electric piano for lazier people!
Are you crazy is what 
Yes, having your favorite music band as piano can sure drive you crazy! So many pianists can get injured while playing! They have to use their fingers so much, it makes sense your fingers must be tired and injured! It can even cause mental issues from untreated traumas perhaps due to a piano falling and crushing your fingers!