In this lesson we look at another category of chord: 7th chords. Strictly speaking the chords we’re dealing with here are called dominant 7th chords, to distinguish them from various other types of 7th chord. But it’s usually enough simply to call them 7th chords.
Sound-wise, they’re perhaps more colourful than our major and minor chords, with a bit of a jazzy or bluesy flavour. Get them under your fingers, and in the next lesson we’ll be using them to play a 12 bar blues.