System for content based music searching

The system of claim 91 wherein the feature vector mixers include an emotional quality mixer.

A system for searching music based upon music content that may be described by a plurality of predetermined feature vectors, wherein a user enters search parameters into a user interface that allows a user to vary the plural levels of the plural feature vectors, comprising:

• a user interface engine that receives the user requests for searching music based upon user chosen feature vector levels, wherein the user interface includes a parser for parsing the user requests.

A system for creating a plurality of music spaces that allows comparison of music attributes, defined by a plurality of feature vectors that are based upon expert data collected from a plurality of expert music listeners and a plurality of music listeners who respond to a plurality of questions after listening to a plurality of music samples, comprising:

• a modeling module that acquires the expert music listener and music listener responses for defining a plurality of music spaces.