Midterm Struggle

After a million times of scratching my head out to find and think of new ideas I finally decided to make a guitar with keys. Keys that when clicked play different melodies. I first decided to use only the microbit with alligator pins. It was easy to use just to use the microbit but one of the issues I was facing was only the use of two pins.(P1&P2). My code was working fine with the two keys but it was not interesting or creative enough to present at the end of the day.