ocr: B8 Blues Scale The rock and blues scales are similar. In fact, the rock scale is generally thought to have grown out of the blues scale. The blues scale has a few different forms, but the most widely used one is given here. Learn the scale as printed. Just like the rock scale, it is best understood when heard against a major chord. The scale below is written out in G. Play the scale against a G chord. And like most scales in this section, this blues scale is a moveable scale, meaning you can move it into different positions on the neck of the guitar to play in different keys. If you have forgo ...