9. The system of claim 8 , wherein: the input interface receives at least one additional music query; the query input processor generates a deconstructed additional music query; and the query engine directs the deconstructed additional music query against a selected database containing deconstructed music pieces, identifies deconstructed music pieces that match the deconstructed additional music query, and produces search output comprising the identified music pieces arranged in a ranked list.
9. The system of claim 8 , wherein: the input interface receives at least one additional music query; the query input processor generates a deconstructed additional music query; and the query engine directs the deconstructed additional music query against a selected database containing deconstructed music pieces, identifies deconstructed music pieces that match the deconstructed additional music query, and produces search output comprising the identified music pieces arranged in a ranked list. 10. The system of claim 9 , wherein the system directs the additional music query against a set of music pieces identified as output of a prior music query.