Hi Friends! Today we talk about the Lydian b7 mode. This mode use when we play a substitute dominant.

If we learn well the Mixolydian mode the Lydian mode will be easy. We have to add to the dominant arpeggio the major second, augmented fourth, just fifth and major sixth.

The Lydian mode came from the Vº of the altered scale.

We study the different boxes of this scale like in the other lessons. First starting in the fifth string of the guitar in note C (C7 chord), then in the sixth string in note C too, now in sixth string again but now the box is to the front, then in fourth string, and the last one in fifth string to the back (to the bass direction of the neck).

The substitute dominant is an option of the dominant. We found this chord half tone to the front of the resolution chord for example:

In this lesson I harmonized the second and the sixth notes of the scale too.
If we want to resolve in C the substitute dominant that we have to use is Db7. You can listen to this chord in the “funk rock lesson”, one of the last lessons.

I hope you enjoy this lesson!