This brief guitar theory lesson explains what is a dominant 7 chord and its possible extensions (natural and altered) thanks to a printable infographic containing two neck diagrams.
In this theory lesson we will see how to add natural and altered extensions to 7th chords. The aim being to bring new colors and so to embellish your chord progressions. This concept is a very important device for composing, chordal accompaniment and chord-melody arrangements.
When learning how to play jazz guitar, one of the most important device to master is to play each tone of a chord in order to outline a specific progression.
This is what we call arpeggios. They are great melodic tools when you want to highlight the chords you are soloing over.
This lesson is focused on diatonic seventh arpeggios and their extensions. In a first time, before applying these extensions, it is recommended to have a very strong knowledge of the triads, both the chords and the arpeggios.