>>15228930Once again meme flag you are a fucking moron. If you play A on a piano or you play A on a guitar or you play A on a trumpet how do we know you are playing the same note? We know they are the same because it’s a particular value expressed in Hz which corresponds to a particular wavelength. If you can’t understand a basic concept like this, you are out of your league and you should move in to shitting up another thread.
