Part 1: Starting to Improvise back to contents Basic Chord Construction8 • Chord Roots • Two and Three Note Chords (Diad And Triads) • Triad Types • Major Scale-Tone Tertian Triads • Open-Position Triads from Major Scales • Making Major Chords Movable
©1998-2013 Jim Gleason. All Rights Reserved. page 236 Basic Chord Construction Part 1: Starting to Improvise back to contents CHORD ROOTS A chord root is the letter name for a chord. The letter may be followed by a flat or sharp which alters the letter. Sharps (“C ” is “C sharp”) indicate a note is one fret higher (toward the guitar body). Flats indicate a note is one #fret lower (“D ” is “D flat”). Naturals ((“C ” is “C natural”) cancel previously indicated sharps or flats and bring a bnote back to its unaltered pitch.n
TWO AND THREE-NOTE CHORDS Chords are combinations of two or more notes played at once.
Diads or Intervals: Two-Note Chords
Two note chords are called diads. Two notes played at once are commonly named as intervals, such as the combination of the notes C and E (“E” above “C”) being called a third (since it is three tones in the C major scale from “C” up to “E” inclusively. There are no formal names for diads as chords, so we use interval names.
Triads: Three-Note chords
Three-note chords are calledtriads . Any note of a triad may be repeated in the chord, so a triad may be played as a five note chord with three different notes, repeating two of the notes. By default, they use every-other scale tone, each using some version of numbered tones “1”, “3” and “5”. To work with chord construction, you need to memorize the cycle of numbers and letters from which chords are commonly built, called thirds.
3 frets 1 4 frets 3 frets C 4 frets 6 3 A E 4 frets 3 frets 4 frets 3 frets 4 thirds 5 F thirds G 3 frets 4 frets 3 frets 4 frets 2 7 D B 3 frets 3 frets Major scale intervals are the same from numbered step to step in every key. In stepwise (numerical) order, they are:
©2012 Jim Gleason. All Rights Reserved. back to contents Part 1: Starting to Improvise Basic Chord Construction page 237
1 1 1 fret 1 2 frets Three to four and seven to one are one fret apart. B to 7 2 2 frets 2 frets C and E to F are one fret apart. In the C major scale, 2 1 2 6 stepwise 3 with no sharps or flats, these correspond. Three to 2 frets 1 fret four is one fret and, in C, three to four are E to F, which 2 5 2 frets 4 is one fret. Likewise, seven to one is B to C in the C 1 major scale and B to C is one fret. C major therefore 1 fret C 2 frets 1 2 requires no sharps nor flats. All other keys require B D sharps or flats to adjust the step to step letter pattern so 2 frets 2 frets three to four and seven to one are each one fret. 2 2 1 2 A stepwise E 2 frets 1 fret 2 2 G 2 frets F 1 1 2 1 2