Hölzl, M., Denker, G., Meier, M., & Wirsing, M. (2009, September). Constraint-Muse: A soft-constraint based system for music therapy. In International Conference on Algebra and Coalgebra in Computer Science (pp. 423-432). Springer, Berlin, Heidelberg.
Monoidal soft constraints are a versatile formalism for specifying and solving multi-criteria optimization problems with dynamically changing user preferences. We have developed a prototype tool for interactive music creation, called Constraint Muse, that uses monoidal soft constraints to ensure that a dynamically generated melody harmonizes with input from other sources. Constraint Muse provides an easy to use interface based on Nintendo Wii controllers and is intended to be used in music therapy for people with Parkinson’s disease and for children with high-functioning autism or Asperger’s syndrome.