Watch the What Is the Major Scale - How Can We Use It to Create Melodic Solos? online guitar lesson by Rob Garland from Melodic Soloing: Major Scale
The major scale is a seven-note scale ideal for improvisation because it contains the very same notes which chords (and therefore) songs are created from. This means the major scale can be used to improvise over an entire song. We'll begin by learning one of the five shapes then create melodies with it and improvise with it over a jam track.
Each shape is named after it's interval from the root of the scale, so Shape 2 would be based off the second note of the key. If we are in the key of C, Shape 2 would start on a D note and so on.
The major scale provides more melodic options than the pentatonic scale because it contains two extra notes but within it you will also find the five pentatonic shapes and the five CAGED chords shapes that also pertain to the key you’re in.