Don Julin's Playing The Changes: Major Triads is a series of exercises with the improvising mandolin player in mind. Learn to play the changes one key at a time melodically. Once you have mastered this technique, your improvised lines (i.e., melodies) will have more shape and form while following any chord progression, resulting in a more melodic solo.
Don Julin's Playing The Changes: Major Triads includes 17 videos, practice tracks, and a workbook with standard notation and mandolin tablature. You can access the videos and practice tracks online or from the included CDROM.