For a regular 7th chord, we need root, 3rd, 5th and b7 – but to say 'a flat 7' would be too easy ... By combining the root (C), 3rd (E), 5th (G) major 7th (B) and duplicate 3rd (E), we create ...

Inversions are essential for jazz players, virtuoso cats such as Martin Tyler, but they are super-useful for any player ...

Bars 4-8 show the initial melody that’s played over Dsus2, and bars 9 and 10 progress to the IV (four) chord ... between A and B there’s A# (A sharp), also known as Bb (B flat).