Introduction to the Chromatic Spiral

The 12 music notes (including sharps and flats) are displayed like a clock. As the notes rise in pitch they move around the clock. When they are back at 12 they are they same note only up an octave. (At this stage the soundwave is twice as fast.) This video plays with this idea.

Chromatic Spiral ~ Harmonic Series 3D

In previous versions of the Chromatic Circle I have introduced depth as a way of portraying pitch of notes but I’ve found it cumbersome. In researching for the Great Sphere I have come across the work of Marysol Gonzallez Sterling and her Biosonic webpage. There I saw the musical spiral amongst other things and it struck me as the obvious answer.

Here is the current version of the Chromatic Scale Spiral 3D as at 2013-05-23. The Spiral will be part of the Great Sphere.

Chromatic Spiral 2

The Spiral is displaying the Harmonic Series here. You can get more details on the Harmonic Series at the Wikipedia page but briefly it is a series of pitches present in all notes and the physics foundation for Western harmonic structure.

First_eight_harmonics_vertical 3D

Each note is another fraction along from the note before. If the low C pictured above is this first line (0-1) then the next C above that is the next line below (1/2). That’s an octave. The next note up is a 1/3 harmonic and lands on the G – the perfect fifth. The 1/4 gives an interval of a perfect fourth which brings us back to C. 1/5 makes a major third taking us to E, 1/6 is a minor third to get us to G and 1/7 is a subminor third to give us Bb. Next, the 1/8 gives us a supermajor second to get us back to C for the fourth time covering three octaves. And it doesn’t stop there.

Anyone with some musical theory knowledge will see that these notes make your standard chord. Although , the further along the series the less standard it is.

693px-Harmonic_partials_on_strings 3D

Introducing Kau Kaka Ora Kardashian

KauKakaOraSpeakEasy2013-02-28At Speak Easy, Thames on Thursday night Kau Kaka Ora Kardashian and the Supermild band will take you around the world in 80 minutes with traditional instruments and representatives from each continent and a number of cultures.

We will be celebrating the full moon of the 26th. Afterwards you are invited to join us as we time travel through the 29th, 30th and 31st into the 1st of March.