Watch the Prelude in C Minor: 2 online guitar lesson by Dave Celentano from Classical Concepts for Rock Guitar
Next, roles are reversed and the student plays the lower part (guitar two) over a backing track of the first part. Here, we'll develop alternate picking starting with a down stroke. FYI, this lower part is a harmony to the higher part and vice versa. Multi-guitar bands like Iron Maiden, Racer X, and Marty Friedman and Jason Becker in Cacophony have used dual lead harmonies with great results.