15. The system of claim 11 , wherein the classification data processing component is operable to associate ones of the candidate harmonic segments having harmonic content levels satisfying the harmonic content predicate with respective classification records comprising an assignment to a harmonic segment class.
16. The system of claim 15 , wherein the harmonic content predicate specifies a first threshold, and the classification data processing component is operable to associate ones of the candidate harmonic segments having harmonic content levels that meet the first threshold with respective classification records comprising the assignment to the harmonic segment class.