I'm just curious, I'm currently 17years old and I'm wondering how long does it take to get "good" at piano? I'm not really good at piano, yet I'm not someone that doesn't know how to play. I used to be home taught by my mom when I was really young but lost interest. However, I want to learn how to play piano now, so I'm wondering how long it's going to take? for example how long will it take for me to learn the basics and be able to play http://www.youtube.com/watch?v=nPvxAO5IPX0. Big thanks to everyone.