Sure, some people might know what a C7b9#11b13 is on paper, but can they actually play it? And how many different moods can they create with that one chord? Even a plain C major chord has dozens of sounds it creates depending on how you order the notes of the chord. This is called voicing, and that's what you'll learn here. Voicing is as important to chords as voice inflection is to language. This is where you start to understand inflection.