2007 – available upon request
ABSTRACT:
This paper introduces Lindenmayer systems (or L-systems in short) as an algorithmic method for designing emergent musical structures in all the time-levels of a composition, from macroforms to waveforms. The algorithm, a formalism related to abstract automata, fractals and formal grammars, consists of different sets of rules used to recursively transform and interpret symbol strings. The model described here can generate multiple networks of musical agents, each capable of performing any musical task supported by the implementing software. These agents move in a hierarchic parameter space while acting upon the compositional environment and interacting with each other. Most weight is given to the implementation of the model and its possible interpretations, with a special focus on the methods for generating waveforms. Extensions of the model are discussed, such as incorporating genetic algorithms, designing hierarchical L-systems and L-system networks and opening the system to real-time interaction.
Visit the pages below to listen to Musical L-Systems works:
Undercover Harpsichord Agents Terrorize the Court
An electroacoustic fixed medium piece created by processing harpsichord recordings using a complex hierarchical network of Lindenmayer Systems and Genetic Algorithms.
Do Digital Monkeys Inhabit Virtual Trees?
An electroacoustic fixed medium piece entirely synthesized using a complex hierarchical network of Lindenmayer Systems and Genetic Algorithms. Awarded at Gaudeamus 2007.