MOMENTOS I

Fernando Iazzetta and Fabio Kon


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The musical piece MOMENTOS I was composed in São Paulo, Brazil in 1994 in Fernando Iazzetta's home studio. It was one of the results of a one year research project about "The Use of Fractal Geometry on Music Analysis and Composition" developed by Fabio Kon. The piece is divided in four movements each one based on distinct fractal patterns.

The first movement (you need Vosaic to listen to it) presents four voices performing Brownian-motion melodies on different fractal scales on top of a traditional diatonic musical scale. It sounds a little minimalist.

The second movement contrasts with the first using a chromatic scale and aggressive timbers while using the same kind of fractal melodies. Differently from the first movement, fractals are used to determine not only the pitch but also the rhythm in this movement.

The third part uses the same kind of musical scale and self-similarity through fractal scaling levels but uses 1/f noise instead of Brownian-motion to generate the melodies.

The closing movement's composition technique was based on a Charles Dodge's idea of creating musical structures on the same way the Swedish mathematician Helge von Koch used to recursively define its fractal dimension sets.

These ideas were implemented by writing C programs which produced MIDI files as its output. This MIDI files were then loaded into conventional sequencers which were used for the final timber and intensity balancing.

More information about my work in computer music can be found in my computer music home page.


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