theory entries

Fugue in E Flat Minor by JS Bach

Plastic representation of the Fugue in E Flat Minor by JS Bach, 1928 by Henri Nouveau.

via [vvork]

Bobby McFerrin and pentatonic scales

http://www.vimeo.com/5732745

Bobby McFerrin demonstrates the universal power of music – especially the power of the fifths ;) The audience knows exactly  how to follow McFerrin’s jumps…

John Piscitello explains the physics behind it:

The major pentatonic scale is formed by taking the 5 “fifths” in succession. If you start on C, you get the notes C, G, D, A, and E. Put those into a single octave and you get the scale of C, D, E, G, A. (In solfege, this is “Do, So, Re, La, Mi”, rearranged to “Do, Re, Mi, So, La”).

These “fifths” are formed by a fundamental ratio in nature of 3:2. (If middle C rings at 291 Hz, then the fifth above it, a G, rings at 392 Hz). The notes’ waveforms will literally line up in space.

That lining up is felt in our bodies. That’s why the audience can sing those notes.

It’s also choirs will nearly always go out of tune only on the 2 notes *not* in the pentatonic scale – in C major, that’s F and B (or Fa and Ti).

via [filmcomposerblog]

Iannis Xenakis – Metastasis

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Metastasis is an orchestral work by Iannis Xenakis, a Greek composer.

“Metastasis was inspired by Einstein’s view of time (a function of matter & energy) and structured on mathematical ideas by Xenakis’s colleague Le Corbusier. The 1st and 3rd movements don’t have a melodic theme to hold them together, but rather depend on the strength of this conceptualization of time. The 2nd movement does have some sort of melodic element. A fragment of a 12-tone row is used, with durations based on the Fibonacci sequence (1,1,2,3,5,8,13,21,34…) ”

via [Twitter - Richard Devine]

Augmented Reality with Twitter

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Another AR app – Twittaround. Shows nearby tweets on the iPhone 3Gs.

via Gizmodo

Lynch und das iPhone

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Lynchs Kommentar zu Filmen auf mobilen Geräten.

Wie wahr….

[Via DeBug]

Phono/Graph

“Phono/Graph” by Ed Davenport

“Two vinyl record players are adapted to create a machine capable of ‘drawing’ the sound of a record as it is played.

One turntable plays a standard 12inch vinyl and sends a signal to another turntable, which uses a vibration unit to make the whole thing shake in time to the music.

A pen replaces a needle on this vibrating turntable, allowing a pattern to be tracked onto a paper circle, which can be removed and examined. See the result below.”

[Via vvork]

Stelarc

Der australische Performance Künstler Stelarc spricht auf we make money not art über einige seiner Arbeiten..

100 Jahre DJ Cultutre

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Auf Yahoo Music UK findet sich eine sehr informative und interessante Flash Animation zum Thema 100 Jahre DJ.

Ihr findet die Übersicht hier.