Learning to make an interactive keyboard

Hello Guys
I need some help, because when I press a key in the freecodecamp platform at the time of programming it has a peculiar sound, in this case the sound of a guitar, I would like to know how I can do that on my computer and also how to customize it, because I liked it a lot. :smiley:

If you continue your studies you will eventually learn some techniques to help you understand how that can be done.