1. A system for generating, controlling or modifying sound entities, comprising: one or more computer processors configured to provide a sound processing utility for generating, controlling or modifying sound entities, the sound processing utility linked to one or more computers, or accessible by the one or more computers, the sound processing utility presenting, or initiating the presentation, on a display connected to the one or more computers, of one or more graphical user interfaces for music composition or modification that enable a graphical map of one or more musical elements as parametric representations thereof, wherein the parametric representations are encoded with information elements corresponding to the musical elements, wherein the parametric representations and the encoded information elements can both be defined or modified by the graphical user interface so as to enable the generation, control, or modification of the sound entities, the musical elements comprising pitch, volume, and duration of notes, and the parametric representations defined using Bezier paths.