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Guitar Modes and Modal Scales
Modal scales, or modes, are the different ways the major scale can function and sound. Any one of the major scale's seven notes can function as the root. Each root, or mode, has a unique tonality and sound. All music is either based on or thought of in relation to the major scale and its modes. Using and understanding modes is critical to developing a knowledge of guitar music theory and understanding popular songs. Modal scales have caused an enormous amount of confusion and frustration, perhaps more than any other musical concept. Unfortunately, most modal instruction is either incorrect or misleading.
Patterns and Modes
Modes don't require learning additional patterns. Modes stem from the same patterns as the major scale. Understanding how to play and apply major scale patterns is the key to grasping the modal concept.
Patterns of the Major Scale
The notes of the major scale cover the entire guitar neck. Instead of tackling the whole thing all at once, the fretboard is always learned in steps by focusing on one position, or pattern, at a time. This is usually accomplished through 5 patterns. Once the individual pieces are memorized they can be connected to complete the whole scale template. Each pattern may make a unique shape, but they all are simply broken pieces of the whole form. So, the individual patterns don't become new scales on their own. They are all simply different arrangements of the same scale tones.
Playing Over Chords With Modes
The major scale can be played along with any one of its notes or chords. For example, the G major scale includes the chords G major, A minor, B minor, C major, D major, E minor, F# minor b5. The whole scale can be played over any one of these chords. When the G major scale is played over a G major chord a typical, happy, major sound results. To hear this correctly, guitar players need to have a friend strum the G chord or perhaps record or loop a rhythm track to play over. Any part of the G major scale, in any position or pattern, can be played. It doesn't even matter what note is used to start. Guitarists can jump into the scale anywhere they like and use the notes in any order. The root G may be emphasized in order to tie the scale to the chord better, but the modal concept still works without doing so.
When the G major scale is played over the second chord, A minor, the sound of the scale changes. Again, guitar players need to have a friend strum the chord or perhaps record or loop a rhythm track to play over. Now the same scale tones sound minor, dark and jazzy. Any part of the G major scale, in any position or pattern, can be played. It doesn't even matter what note is used to start. Guitarists can jump into the scale anywhere they like and use the notes in any order. The root A may be emphasized in order to tie the scale to the chord better, but the modal concept still works without doing so.
Seven Scale Modes
In the above example, the sound changed when playing over G and A minor because mixing notes and chords no different from mixing colors. Yellow and blue make green. Red and blue make purple. And so it is that the G major scale played over a G chord makes "Ionian Mode" (or the Ionian scale) while the G major scale played over an A minor chord makes "Dorian Mode" (or the Dorian scale). Each major scale degree, or chord, has a unique tonality and sound. Patterns, positions and starting points don't effect the modal sound. Rather, the note or chord the scale is being played over establishes the mode.
Hearing and Playing Music Modes
Mixing colors has to be seen in order to be understood. Likewise, music modes have to be played and heard. In fact, many music theory concepts have to be applied and experienced this way. Theoretical explanations alone can't demonstrate how modes work. Guitar players need to apply the concept to the fretboard.
Seven Greek Mode Names
Each major scale note, or chord, has its own unique sound characteristics and corresponding Greek mode name. The seven Greek names have origins in the church and include Ionian Mode, Dorian Mode, Phrygian Mode, Lydian Mode, Mixolydian Mode, Aeolian Mode and Locrian Mode. All musicians use the same Greek mode names because this music theory concept is relative to all instruments.
How to Learn Scale Modes
With music theory, each concept builds on the next. Guitarists should never get ahead of themselves by studying topics that they're not ready for. The modal concept is related directly to major scale patterns and guitar chord progressions. To learn modes, guitar players must first master the major scale and its patterns. Next, guitarists should learn how the major scale is used to build chords. Finally, all good players should learn about chord progressions and playing by numbers. Then, guitar modes will be easy to understand and apply.
Play Until Your Fingers Bleed!
Mr. Desi Serna (Google Me!)
Author of Fretboard Theory
http://www.Guitar-Music-Theory.com
Scales, Chords, Progressions, Modes
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