In addition, our cherries and brackets have the exact same relationship to each other that they did before but they’ve all been shuffled to the left. Not much has changed: we’re dealing with the same twelve notes. We can create most of the scales that are commonly used simply by moving this sequence of whole steps and half steps while preserving their relationships to each other.īefore we begin, let’s number the notes of the C major scale as they appear. This set of notes has an important feature: the “cherries” that represent half-steps are spaced as evenly apart as possible. We want a seven-note scale with as few half steps as possible in order to increase harmony and decrease dissonance. This is because the notes vibrate at frequencies which have some conflict, and this conflict is audible to the human ear. The half steps in the scale are the primary cause of dissonance Refers to the quality of two or more notes which do not have strong harmonization. If it had eight, there would be an extra note, and extra half steps. If it had six, there would be a “gap” somewhere. Our scale will probably have seven notes.
If we want a set of notes that works well for building chords, our choices of scales are limited. Hundreds of years of music prove this series of steps reliable. Building the Major Scale The process The result We may have to accept these two things at face value: our definition of a “major scale” is a series of 7 notes chosen from a set of 12, guided by the following steps: whole, whole, half, whole, whole, whole, half. To learn how scales and chords work, we need to understand what a “major scale” is, and what a “minor scale” is. Most music is based on either a major or minor scale, and these two scales are closely related. In reality, few of these combinations are used in music.
In fact, there are 462 possible “C” scales we could create using 7 notes in which the first one was “C”. It follows that we could create many scales where “C” is the lowest note, because there are twelve notes and we can complete the scale with any other six. The quality of the scale (major) is determined by the notes in it and their relationship to the tonic A word describing the tonal center of a piece of music, with other tones resolving to this note. Previously, we learned about the musical alphabet and the major scale. Next→ Analysis of Common Chord Progressions in Popular Music The Minor Scale Formula
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