The idea here is to see how the chord, scale and lick all relate to each other – the three shapes are pretty similar. Play the A chord with a first-finger barre. Your third finger should fall into ...

The frequency of every note occurs in a simple ratio to those of other notes, such as 3:2 or 2:1. Dale Purves ... the frequency ratios of our familiar music scales are usually found. “If this really ...