Cycle of fifths exercise for guitar
This exercise is about playing the root note for each of the major keys in music. The fourth and fifth strings are the only strings being used. The ascending version is for the sharp keys and the descending version is for the flat keys. Try playing this exercise while saying the name of each key note. You can find the PDF and XML file for this lesson at my Google+ page. There are some other resources there now and I will be adding more going forward.