How notes are made…

Like on a regular guitar, the first thing you must do is tune your strings. However, unlike a guitar, instead of 6 strings, you have 4. While this is easier to play, you do not get the same amount of notes that you would with a regular guitar, but still get quite a lot. Near the hole is where you get your main notes. The 4 notes on our instrument are the E, A, D, and G. These 4 notes give off a different sound because they have a different thickness. To get these notes, you pluck the string near the hole, and depending on what string you pluck and where you hold that string on the opposite end of the guitar, you will get a different sound. So these 4 notes will make more just by where you position your fingers.

How notes are amplified…

In the above diagram, someone is demonstrating how a simple A-note can be turned into an A-minor. In the diagram, the person creates a wave by plucking the string and then holding it to shorten the wavelength. And like we learned in our wave unit, v = λf, where λ is dependant on f, and vice versa. So when you shorten the wavelength like the example in the picture, the frequency to make the note is heightened to account for the shorter wavelength.