zmarburg,
If your primary mission is identifying tracks you have in a local catalog, you could look at using the Echo Nest's song/identify API. This requires a fingerprint string, for which you can use open-source Echoprint (be sure to specify the "&version=4.12" parameter to song/identify) or our prebuilt binaries for ENMFP. See the song/identify documentation for download details and licensing.
We are curious here at The Nest what genre you have that you feel is underrepresented. We are always looking for new genres to discover and analyze.
David