Improvise in Lydian Mode
Introduction
(For more information about building modes, see Understanding Modal Harmony.)
The Lydian mode is similar to the major scale, but with a ♯4. A Lydian vamp will tend to focus on the ♯4 sound as much as possible. One would often hear the Imaj7♯11 as the tonic chord, with other chords also having the same tone.
The tracks here are focused on learning to improvise in B♭ Lydian. The ♯4 of the scale is E instead of the E♭ that would normally appear in B♭ major.
The three backing tracks presented here offer the chance to improvise in B♭ major only, (“Track E”), B♭ Lydian only (“ Track F”) and a track that switches back and forth between the two (“Track EF”).
The Chord Progression
Note that there are three tracks: one for “E”, one for “F” and one for “EF”.

B♭ Ionian (Major)
B♭ Lydian
Track “E” — B♭ Major Only
Improvise using the B♭ major scale.
Track “F” — B♭ Lydian Only
Improvise using the B♭ Lydian scale
Track “EF” — B♭ Major, B♭ Lydian
Improvise using B♭ major and B♭ Lydian. Switch back and forth. Be sure to listen carefully for the switch.
