so I want to know how to do the following thing:
when I'am touching button "C" and then move my finger (this application will be for android) to button "D" and then the next button up to the end ( I mean up the button "B" ) I should get smooth crossing, like I move my finger over piano's button.
In my example I have to press every button to get a sound, if I I wiil press on the button"C" and then move my finger to the next button up to the end, I will hear only the sound of the "C" button, but other buttons don't make a sound...
How to do my example more realistic, like a real piano????