You can apply this formula to any other triad or chord, always adding the 7th a tone below the root note. When you speak to jazz, blues, rock or pop musicians, and ask for a chord of C7 ...

While you can do an awful lot with those basic three notes, adding additional notes (known as extensions) can completely change the character of your chord, and one of the most influential extended ...

except chord VII - the notes B – D – F, which is diminished. When a seventh is added to a chord this is known as a seventh chord. The dominant seventh of a V chord can be shown by the symbol V7.

Try to play this interval on a keyboard or piano. A chord is a group ... In this example you will hear both chord I of C Major, and the dominant 7th chord. You can follow along with the notation ...