20. The computing device to understand music of claim 19 , the actions performed further comprising obtaining a test music sample using the semantic basis classifier machines to compute a test sample description vector for the test music sample.
22. The computing device to understand music of claim 20 , the actions performed further comprising comparing the test sample description vector with one or more description vectors for target music samples determining the test music sample to be similar or not similar to the target music samples depending on the results of the comparison.