Run Φ (2003-2004)
Genetic Algorithms use an evolutionary metaphor to explore spaces. These works use a modified genetic algorithm to evolve waveforms. A population of waveforms exists in multiple locations (one for each speaker) and individual waveforms can freely migrate between locations. As in nature, the environment of a particular location can change over time. This can happen quickly (as in a fire) or slowly (as in an ice age). Waveforms sexually reproduce and undergo mutations. Their probability of reproducing is related to how fit they are in their current environment. An individual that is quite fit in one environment may be unfit in a new environment and its genes (in this case, the distinctive sounds that characterize its waveform) may be removed from the species entirely. Other sounds that were unfit may come to the forefront as the environment changes. This process of evolution in a changing environment creates the structure of the piece.