Chord Formula Charts
The following chart gives a comprehensive list of chord formulas, together with an example based on the C Scale:
*indicates that a note is optional.
A double flat bb, lowers the note’s pitch by one tone.
A double sharp X, raises the note’s pitch by one tone.
This next chord chart features chords which have a slight alteration to one of the given formulas, and are therefore called altered chords.
*denotes optional note
In altered chords, the notes to be altered are always written as part of the chord name, enabling you to construct the chord. For example, a Cm7#5b9 (not listed above) is a Cm7 chord with the fifth sharpened(#) and the ninth flattened (b9). When you are working out a suitable shape for this chord, remember that the root note and/or the fifth note may be omitted (see Lesson 28)
Another type of alteration occurs when chord symbols are written thus:
Example 1:
G/F# bass
This indicates that a G chord is played, but using an F# note in the bass.
Example 2:
C/G# bass
This indicates a C chord with a G bass note.
Sometimes the word "bass" will not be written (e.g., the symbol will be just G/F#), but the same meaning is implied.
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