I have this set of music data crawled from LastFM, Now, I would like to normalize and classify the songs based on one tag per track. I got this master Genre list, https://spreadsheets.google.com/pub?key=psnjFY3R2itsqjinSs9hkZw
But again, how will I identify, J-pop, JPop and Jap Pop all are same as Japanese Pop? Is there a web api or database which will be useful to get normalized genre?
Thanks for helping.