Principle
This approach maps quantum-circuit measurement results onto discrete musical choices. In the published stochastic-note model, a qubit measurement axis is related to a direction on the circle of fifths. Measurement outcomes are then associated with alternative pitches.
Because it uses measurement outcomes rather than direct access to the full wavefunction, this approach can in principle be implemented using measurements on quantum hardware.
Models and examples
Stochastic note generation
The research uses quantum gates and measurements to determine notes probabilistically and considers correlations arising from multiple qubits. The publication shows a graphical interface for assigning measurement axes and examples of generated note sequences.
Further measurement-based schemes
The paper also discusses quantum phase modulation and quantum-game-theoretic models. These schemes explore different ways to connect quantum measurements with musical expression.
Figures and source code
Modes 1–5 of the measurement-based generator are illustrated with GUI screenshots, quantum-circuit diagrams, and example scores.
View illustrated modes and source-code link →
Resources
Technical circuits and examples are presented in the research manuscript (PDF). See also the program interface and source code.