Elegant formal rules do not guarantee compelling music because music works through perception, not logical consistency

Roads draws on Risset, Xenakis and Debussy to argue that ‘works of art make rules, rules do not make works of art.’ Absolute formalism — following a predetermined conceptual plan from beginning to end — must ultimately be translated into acoustics, psychoacoustics and emotional response, and it is in that translation that the game is often lost. Abstract algorithms borrowed from physics or mathematics are ‘not tethered to human action or perception’ and tend to sound either predictable or merely random. Tellingly, Xenakis edited, rearranged and refined the raw output of his own Free Stochastic Music programs, reserving that freedom for himself. Formalism can be potent at the micro level (spawning masses of grain detail) but is insufficient alone for large-scale musical coherence.

Examples

Xenakis on ST/4: ‘the output sometimes lacked interest. So I had to change [it].’ Wolfram’s WolframTones: billions of cellular-automata rules producing ‘trillions of pieces of unremarkable music.‘

Assessment

Explain why algorithmic composers often edit or override their own generative output, and distinguish where formalism helps (micro) from where it falls short (macro).