Watch the Open up the Neck Diatonic online guitar lesson by Angus Clark from Hard Rock Survival Guide: Lead
In a similar fashion to what we just did with the two pentatonic scale shapes we are going to open up the neck with three diatonic fingerings. There are three fingering patterns for a one octave major scale: starting with your first finger, starting with your second or third finger, and starting with your fourth finger. So if you're in D major for example, anywhere you can find a D, you can play the major scale by using those fingerings. It will take some practice but it will be well worth it. Again, you need to be able to recognize these three patterns, and they will look a little different when you're going across strings 2 and 3.