When I was young and studying music, like most music students of the time I was into Jazz. My professor once said to me, 'Why are they playing so many different notes? They're searching for the right note.' So I have nothing against improvisation but I'm more into defining what note I want to have. That's why I've always been keen on visual pictograms, like traffic-signs as its pure information. If you can find a chord progression and a pure, authentic melody it's all you need. The most important information is definite pitch because it's the purest information our brain can remember. That's why everyone can remember so many different melodies.