Abstract: Methods and apparatus for predicting the quantum state, including the dynamics of such quantum state in so far as it represents subjects in a community of subjects to be addressed by marketing tools. In the quantum representation adopted herein the internal states of all subjects are assigned to quantum subject states defined with respect to an underlying proposition about an item that can be instantiated by an object, a subject, an experience, a product or a service. Contextualization of the proposition about the item is identified with a basis (eigen-basis of a spectral decomposition) referred to herein as the social value context. The invention teaches methods to identify one or more populations of subjects amongst the community of subjects, who will respond in a certain way, modulo an underlying proposition about an item of interest. This determination is based on the quantum mechanical probabilities correspondent to the state vectors representing the quantum states of the community subjects.

Abstract: Apparatus and method for easily, efficiently, and accurately searching melodies. A melody is inputted to a computer and converted into a form of a sequence of digitized representations of relative pitch differences between successive notes thereof. A melody database is searched for at least one sequence of digitized representations of relative pitch differences between successive notes which at least approximately matches the sequence of digitized representations of relative pitch differences between successive notes of the melody.