FINGERSTYLE WARM UP - GUITAR LESSON 13
This appears to be a reversal of Exercise 12, and it is, but it's very important. Both Exercise 12 and 13 are found in the arrangements by many guitarists like Chet Atkins. As a variation, use the P to play the I parts and alternate the I and M for the M notes. That will give you the RH technique to play the gallop made famous by Merle Travis and used by Chet and other fingerstyle guitarists.