What's a Tritone Substitution?
The tritone substitution is one of the most common substitution found in jazz. The basic application of a tritone chord substitution is to take any 7th chord and play another 7th chord that has its root a tritone away from the original. This guitar lesson demonstrates how you can play scales and arpeggios starting from the b5 (a tritone away) of the V7 chord in a II V I chord progression. This way you will highlight altered tones as the b9 and the #11.