I’ve been a huge fan of 4NPS (four-note-per-string) scales ever since I first saw them on the Allan Holdsworth REH DVD back when it was a video cassette in the late 90s. If you’ve ever seen Holdsworth play, you’ll probably be aware of his huge hands and equally impressive reach on the fretboard. 4NPS scales were clearly a walk in the park for Holdsworth, but what about the rest of us mere mortals? The main attraction (at least for me) of 4NPS scales is that there are no box patterns to learn...