what type of software do I need to show the keys from my yamaha keyboard on my computer screen?

I want to start making videos on how to play the piano/keyboard, what type of software do i need to show the keys I'm playing to make it easier for people to follow? Thanks in advance
Let me try to explain a little better. I will be using a camera to record the videos (of course), but i want software (does not have to be free) that will automatically show the name of the notes I'm playing while I'm playing to make it easier for beginner players. Thanks again.