Pentatonic Blues In G
The basic idea behind the process of improvisation is pre-hearing as you play. The notes have to be in your ear and in your hand at the same time. You could also describe it as using your inner-hearing to “sing” along with your instrument.
Here are the basic chords for the above video:
Here are the basic pentatonic chord arpeggio fingerings in numbered sequences:
Here is an exercise to help you hear the changes:
Here is a guitar sound file for your practice:
The above material is from a Banjo Hangout online instructional meeting held on October 10th of 2010. The video is from 2006.