I’m pleased to announce the release of Disconnected, and album of algorithmic sound collages generated by pulling sounds from the web.
I prefer to call this album semi-algorithmic because some of the music is purely software-generated, while other pieces are a collaboration between the software and myself. Tracks four and six are purely algorithmic, while the other tracks are a mix of software-generated material and more traditionally composed material.
The software used in the sound collage pieces (1, 3, 4, 6) was inspired by Melissa Schilling’s Small World Network Model of Cognitive Insight. Her theory essentially says that moments of cognitive insight, or creativity, occur whenever a connection is made between previously distantly related ideas. In graph theory, these types of connections are called bridges, and they have the effect of bringing entire neighborhoods of ideas closer together.
I applied Schilling’s theory to sounds from freesound.org. My software searches for neighborhoods of sounds that are related by aural similarity and stores them in a graph of sounds. These sounds are then connected with more distant sounds via lexical connections from wordnik.com. These lexical connections are bridges, or moments of creativity. This process is detailed in the paper Composing with All Sound Using the FreeSound and Wordnik APIs.
Finally, these sound graphs must be activated to generate sound collages. I used a modified boids algorithm to allow a swarm to move over the sound graph. Sounds were triggered whenever the population on a vertex surpassed a threshold.
DbN take old cassette tapes found on flea markets and thrift stores and use them as raw material in fully live improvised electronic music performances. The found tapes are sampled, manipulated, processed and ”physically played” using granular synthesis and other techniques, to create obscure rhythmical structures, noises and drones. For each and every concert DbN use only cassette tapes found locally within the city or the area of the specific concert venue, making the raw material for every performance totally unique. The audience is encouraged to bring their own cassette tapes to the venue for use in the performance.