Piano on matlab gui

Hello. I am a freshman student at mechanical engineering. I try to make a piano on matlab gui for final project but I don't know how I make exactly. I will appreciate if you help me. Thank you in advance.

[Sean de Wolski]

Well what have you done so far?

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

Answer 1

[Jan]

I hestitate to mention, that it could be potentially a good idea to ask Google.