From The Doobie Brothers to The Smiths, James Brown to Metallica, 7th barre chords are fundamental for playing with more ...

For a regular 7th chord, we need root, 3rd, 5th and b7 – but to say 'a flat 7' would be too easy ... fifth string as root (A), we then find the b/minor 3rd (C), 5th (E) and G#, the major 7th.

All the chords built on other notes in the scale of C are minor, 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.