Watch the Chord / Scale Relationships online guitar lesson by Brad Carlton from Guitar Lab: Latin Rock Lead

Diagrams one and two show the arpeggios and scales for the two chords in this progression. This lesson demonstrates how to play these scales and hear how the notes change theoretically as the chords change. Remember that the numerical analysis of a note is based on the root of the prevailing chord. This means that if you're playing a B note over an Em chord, it is the 5. When you change chords to the B7, that same B note becomes the root (1). If you compare diagrams one and two, you'll see this principle in action throughout all seven notes of each scale. Notice that there are six common tones between the E Aeolian mode and the B Phrygian dominant scale. The only note that changes is the D in the E Aeolian ( the b7) which then changes to D# in the B Phrygian dominant scale (the 3). In the video you will learn how to play a note and listen to its function against the prevailing chord.