Can anyone help me in making paino using arduino using proteus with code
This is not a Proteus forum.
Post your best effort at the code. Read the forum guidelines to see how to properly post code and some hints on how to get the most from this forum.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.
Describe what the code actually does and how that differs from what you want.
What Arduino? More detail on your project, please. A schematic is most helpful.
A search for "arduino piano" yields almost 5 million hits. There might be a starting point there somewhere.
Do you have any code that you've tried so far?
maybe a search for "arduino paino" doesn't have so many...