Abstract
Composition and performance of Computer Music still keep some of the features of traditional music, together with new ones. Rhythm, melody, harmony can still be present in new paradigms (even if they are not necessarily required when dealing with computer music), but new compositional parameters are coming to light, causing the term «music» not always to be appropriate to describe new phenomena of sonic art. This paper will show some new paradigms of this kind of sonic art, as well as different view of old ones.

Any past dogmas should be wiped out when dealing with digital arts. The rebellion against tonality of the first half of 20th century is surpassed now, and I believe that new music could use harmonic intervals without generating conflicts with the ideological problems which arose at that time (even if there are still many people who don’t admit it). Actually, digital domain opens a huge amount of unexplored worlds, making any past ideological dogma a prison we should free ourselves from.

Nowadays, making music has many things in common with visual arts and scientific research. Many musical parameters can be applied to video arts, architecture, and vice-versa. Structure of sound has a lot of similarities with many other physical phenomena such as inner atomic structure, particle physics, astronomy, biology etc.

This paper will deal with new uses and interpretations of old musical parameters (rhythm, harmony, melody) together with a presentation of some of the new ones.

Debated topics are:
? Harmonic/inharmonic sounds, rhythm and melodies. The Deep Harmony (the harmony of spheres or cosmic harmony CYCLES).
? The inner structure and evolution of a single sound
? Interpretative music: Music generated by exploration of soundscapes or sonic architectures, generative processes constrained by interpreter’s gestures, state transitions between musical structures.
? Generative music: stocastic generation, algorithmic composition, levels of action.
? Music or non-music this is the problem (a terminology problem)
? Hyper-spatial music, virtual times, hyper-times. Time travels by means of sonic matter.
? Visual music. Generating 3D video by means of musical processes.