I always wanted to learn how to play piano, but I couldnt bother spending years it takes to actually learn it.
Then one night, I went to sleep. I was dreaming about being a wizard, then suddenly that dream stopped and another dream began where God appeared in my dream.
God said: "Once every thousand years, I choose someone and appear in their dream to grant them any wish. This time I chose you. Ask anything from me. I will grant any one wish you want."
I was a bit confused, but then I said: "Okay, if its any wish, teach me how to play piano in under one minute."
God seemed a bit confused and said: "Thats very strange. Most people would ask something noble like ending all wars, solving world hunger, or to bring their loved ones back to life."
I said: "Forget about them. Teach me how to play piano. I heard it takes years of practice, can you really do it in under one minute?"
God said: "But are you really sure that is your wish? You know you only get the one, and are you really actually sure that is the one you choose?"
I got a bit angry and said: "Wait, how do I even know you are God and not an agent of Mossad?"
God said: "Uh fine, I will teach you how to play piano in under one minute..."
I said: "I dont even believe that you can do it, but lets see."
Suddenly, a piano appeared in front of me.
God said: "Mark these four piano keys with numbers: 1, 2, 3, and 4."
So I did, and four piano keys became 1, 2, 3 and 4.
God said: "Keys are played in exact sequence, so all you need to do is remember order of numbers in a song you want to play, and press numbers in that order. So if song plays 123, you press keys 1, then 2 then 3."
I said: "Wait, thats really easy."
Then I woke up. First I thought it was just a stupid dream, but I then I said "oh what the hell, lets try it."
Song I chose was Yuki no Shingun. I watched a guy play it on piano, and I marked the keys with unique numbers, so when guy plays key with number 3, I write down 3.
In the end, the numbers I got were:
123
232
34443
123
232
34442
So only 4 piano keys in total were used in the short play I wrote down. So I decided to give it a try and press keys in that order. And it worked. It sounded exactly like that guy played it.
And apparently, this works with any instrument, not just piano, because each instrument has basic sound parts, and the sequence they are played in.