Music! It's a world of endless complexity, limitless possibilities ... over the course of human history we've written millions of songs, concertos, jams and ditties.
So it's strange to think that this wealth of sound and artistry is really just various combinations of 12 separate notes, arranged in a vaguely organised fashion.
And when it comes to pop music, the palate is even more limited than that. For today's music feature we're going under the hood of songwriting and talking about chord sequences- and to help us with that, we've enlisted Otago University music lecturer and member of the Verlaines Graeme Downes.