Guitar This DVD explains what progressions are and teaches you how to use your scales, modes and chords over them in compositions and jams.Accompanies the book The Guitar Grimoire: Progressions and Improvisation.Lessons on: scale tone degrees, circle of fifths, circle progressions, scale tone degree alterations, instant song creator, improvising of 12-bar progressions, soloing within a window, soloing over diatonic and circle progressions and soloing over scale tone degree progressions.