Day 19.

Augmented and Diminished group:

~~~~~~~~~~~~~~ P o s i t i o n s

augmented~~~~~~~1~~~3~~~#5~~~~~~~~~( Notated by using a plus + sign, C+ or Ab+ )

augmented 7th~~~~~1~~~3~~~#5~~~b7

augmented 9th~~~~~1~~~3~~~#5~~~b7~~~9 ( Notated 9 #5 )

augmented maj 7th~~~1~~~3~~~#5~~~ 7

diminished~~~~~~~1~~~b3~~~b5~~~~~~~~(Notated by using a little zero o, ie. Co or Abo)

diminished 7th~~~~~1~~~b3~~~b5~~ bb7~~~(A double flatted 7th, - equal to a major 6th).

Suspended: Not really a group. Just one type of chord. But VERY important !!

~~~~~suspended 4th~~~1~~~4~~~5 ( If a 4th is added the chord is called 'suspended' - notated by using the abbreviation 'sus' - Just changing the 3rd to a 4th on any chord makes it a sus4 chord. If it has no 3rd it is neither major nor minor).

The suspended 4th chord, most often played without the 3rd present, is used a lot in Rock music ! Many musicians prefer to use it as a substitute for chords with 3rds in them because it gives the lead singer or instrumental soloist(s) more flexibility (since it is neither major nor minor). The major 3rd highly defines a structure and many musicians like to do away with committing so heavily to a harmonic structure that's so narrowly defined or restricted as with the use of a major 3rd.

End of day 19.