G and Bb will present you with the chord we describe as C minor 7. It obviously adopts a minor tonality, but the presence of the 7th makes it sound fairly unique, and slightly enigmatic.

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.

From bossanovas to Carole King and even James Bond villains, the major seventh can completely change your song’s mood.

For example, the relative minor of C is A minor ... the dominant seventh was often substituted with an augmented chord.This gave the tonic-dominant a new and modern feel. This can be heard ...