Watch the Half Step Down: Lydian Sound online guitar lesson by Kenny Wessel from Shades of Jazz

To get a bit more deeply into the changes and to understand the fretboard better, lets now play in position over the 4 keys. We're going to play over all 4 chords and keys without moving more than a fret up or down as the chords change, trying to connect the scales a bit more melodically. Again, the progression is Gmaj7#11, Bbmaj7#11, Cmaj7#11, to Ebmaj7#11, 4-bars each.