RGB Music RENGA is an algorithmic composition. It creates about 10 to 60 seconds of compositions from RGB (Red, Green, and Blue) pixel value of a series of photographs.

RGB Music:
The program reads RGB value of pixels from the top left to the bottom right of an image horizontally. One pixel makes three notes of sounds, and the length of note is determined by high or low value of the pixel. RGB value 120 or 121 is the middle C, and RGB value 122 or 123 is added a half steps of the scale that is C#. RGB value 0,0,0 is no sounds.

It is not an impression of a painting or a photograph of a musical variation. It composes a score from an image directly.

Improvisation: a little more details about the composition
The music is not a recorded file. The music is an improvisation by the Web software. Total number of pixels, tempos, scales and instruments are changed in every each session. The basic conversion from RGB Value is a twelve-tone scale music, then it is filtered to another scale. R, G and B values are assigned to an instrument from 123 different instruments. These musical elements, the number of the photograph and the performance date and time are described at the bottom center or the right column. The color score of mosaic (chart of pixels) and XYZ mapping score are shown in the right column.

RENGA and Photographs:
The project title "RGB Music RENGA" was taken from a form of RENGA. RENGA is continuing short and collaborative poetry in Japan. The beginning of lines of a RENGA became HAIKU (a poem of seventeen syllables). A series of everyday life scenarios of photographs was inspired by Hokusai's Thirty-six Views and One hundered Views of Mount Fuji.

RGB MusicLab:
The concept and the method of RGB Music RENGA. It was gathered Kenji Kojima's sound art studies and made an application. MacOS and Windows. Freeware.

RGB MUSIC RENGA PLAYER:
for New York City Subway, MacOS and Windows Beta 02

RGB Music RENGA:
999 Views of Skyscrapers from Great Lawn in Central Park,
New York City, Summer 2009

• Web Browser version requires revWeb plugin
  This is real time algorithmic compositions by Web application.



• Full Screen Installation version 4 snap shots   


Web browser and Installation versions are same algorithm.

• Original 999 Photographs

RGB Music RENGA:
New York City Subway, Photographs Spring 2005 - Fall 2007

• Web Browser version requires revWeb plugin
  This is real time algorithmic compositions by Web appli.



• Full Screen Installation version snap shots


Web browser and Installation versions are same algorithm.