If the basic sound of jazz is based on tetrad chords (aka four-note chords), it is common to extend them with other tones. These other notes form the upper structure of a chord which includes 9th, 11th and 13th. Adding extensions to chords help to get off the beaten tracks and provides some new harmonic colors to your playing (chord soloing, comping, and arrangement). This lesson provides you useful extended major 7th chord shapes to apply to your playing.
1- Blues progressions and variations
2- Chord studies
3- Guitar walking-bass studies
4 -Rhythm patterns