The Hierarchy of CALMUS
A composition in CALMUS is build up with musical objects. The form of the composition is created out of the hierarchy or the super-structure of all musical objects in the composition and the textural relation between them.
The texture of the object is determined from the type of polyphony, type and amount of melodies within an object and the development of them.
A musical object in CALMUS is constructed with material objects such as melodic cells and controlling chords (Model Chords) for the harmony, etc. The textural development is controlled with steering shapes, various kinds of Taboos, linear development of each component and with harmonic progression.