Interactive timeshaping of musical scores

In this article we aim to organize the collection of practices that amount to modifying the temporality of a musical score in order to create a new one, by representing them as a combination of three basic families of operations: dilations, distortions and repetitions. The initial score can be borrowed or designed on purpose, and can be of any complexity (an entire score, a single note, or anything in between). We call the complex of these practices 'timeshaping'. We describe the analytical space derived from the proposed organization and show how many of its processes can be implemented in an interactive computer-aided composition environment using the bach and cage libraries for Max