How do I make swipe touch controls for a guitar effect

I am trying to incorporate some guitar strumming/swiping controls (upward & downward) for an app I am working on. I have made guitar string sprite buttons and put touch controls on them but they have to be touched straight on to play the audio clip. I have tried On Touched Object, Is Touching Object, and On Tapped Object. I would think there should be a simple way to do this. Thank you in advance.

try touch on hold?

Should be pretty straightforward..

Could you share your capx?

One issue I can imagine is that the touch is moving at too high a speed so the touching of the objects isn't detected..

a way to solve this would be creating (an) object(s) between touch start and start end and check for overlap of those or something similar..