And any style that evolved out of the blues naturally also relies heavily on the dominant 7th sound. Thus we’ve come to hear these chords as one of the signature sounds of the blues. The blues relies on these chords particularly extensively. How to never ask “What chord is this” againĭominant 7th chords are critical to many genres. To turn a major chord into a dominant 7th chord, add the flatted 7th note to the chord. Any major chord can be transformed into a dominant 7th chord.
For instance, a C dominant 7th chord is written in chord charts simply as C7. In a chord chart, the chord is denoted by the name of the chord followed by the number 7. What is a dominant 7th chord?Ī dominant 7th chord is a collection of musical notes that includes the 1st, 3rd, 5th, and the flatted 7th degrees of the major scale. So let’s take a good look at the dominant 7th chord so you understand it and, more importantly, know how to use it. If you’re going to play it properly, then you need the dominant 7th chord. Simply stated, you can’t play the blues without the dominant 7th chord.
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