![]() ![]() The pattern that is naturally formed by the half steps in the tetrachords is: Major-minor-minor-Major Capitol Roman Numerals for Major, small roman numerals for minor. The major 3rd has a fret range of 2 frets while the minor 3rd has a fret range of 3 frets. We identify them with Roman Numerals, each with a purpose in allegiance to the key. Each tetrachord has its first and last harmony be a Major 3rd (4 frets) and its 2nd and 3rd harmony be a minor 3rd (3 frets) We call each note with its harmony a degree of the scale). The results of this natural ‘distribution’ of half steps gives us an important pattern. The natural half steps between the 3rd and 4th notes in the tetrachords determine if the 3rd will be a major 3rd or a minor 3rd. ![]() An interval is not the notes themselves but the space between the notes, like a distance. Once the ‘Pairings” have completed, each note in the scale has a harmony note an interval of a third between the notes on the second string and the notes on the first string. ![]() All concepts presented in clear and simple. Continue this pattern advancing up the scale until we complete the ‘pairing’ when ‘do’ and ‘mi’ are finally paired an octave higher. Guitar Harmony, by Alan Hirsh, is one of the best guitar theory books (with ear training), progressively organized in 10 units Scales/Intervals, Triads, Major, Minor, Chord Progressions, Chord Voicings, Seventh Chords, Cadence and Phrases, Secondary Chords, Non-Chord Tones, and Harmonizing Melody. Next, we have paired ‘re’ the D and ‘fa’ the F skipping over the ‘mi’. How the half step intervals from the tetrachords are distributed gives us predictable and therefore functional two-part harmonies. The distance between C and E is a Major 3rd (4 frets) a 1 fret difference than between D and F, a minor 3rd (3 frets). We advance down the key, pairing notes of the 2 strings. The 3rd note, the E (green) in the C Major scale is the same note as the open note of the first string. The semitone differences between the 3rd and 4th notes in the tetrachords will naturally distance the 3rds in the harmony. There are two types of 3rds, a major third, (4 semitones or frets), and a minor 3rd, (3 semitones or frets). Our selections have paired ‘Do’ the C and ‘mi’ the E skipping over ‘Re’ the D. We construct harmony by stacking every other note in the scale. Play the next two bars, thinking, saying or singing the solfeggio syllables placed above each note. Together, they make up the first and second halves of a C Major scale a key to understanding the mechanics of the Cycle of 4ths and 5ths yet to come. In the following 2 bars, we layout a major scale on the 2nd string recognizing a C tetrachord in the first measure and a G tetrachord in the second measure. At BeginnerGuitarHQ, we want to keep you at the top of your musical game in every way possible. The key of C major is all-natural notes as is our fretboard diagram, i.e. Let’s build the harmony of the C major scale which has a key signature of no accidentals (sharps and flats) i.e. Two tetrachords connected by a whole step makes a Diatonic Major Scale. The interval pattern of a whole step, whole step, half step together makes up a tetrachord. In this JGT lesson, jazz guitarist Leon Rodriguez explains h armony on the guitar in this music theory lesson specifically for guitarists. ![]()
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