I guess catagorizing music is harmful when it gets really really anal lol.. (like me I guess>>

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But its fair to say that some rough discriptive terms are useful... (Like in the sciences perhaps...?)
For instance, I love 90's gangsta rap, but can't stand old skool hip hop (from the 80ies)... Clearly they are very different in both style and content.. Sugar Hill Gang vs Wu Tang.. vs Ma$e
Similarly in dubstep: Skream - Midnight Request Line vs Whiteboi - Arise. Both are "dubstep", but as they sound nothing alike, it is surely useful to use labels?
Personally it does my head in when people think electronic music = techno etc.. Or worse (to me anyway) Jungle = D'n'B

(Although can someone explain the difference to me between house and techno

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I guess catagorizing is also a way for me to personally identify what styles I like and dislike... For me it is important as a facet of my identity to name and catagorise things to which I have some connection. Distorted basslines is one such area, and only identifying slowish bass heavy music as "dubstep" doesn't really clarify to others my exact interests or passions.
I guess what it boils down to, is this, I'm only really interested in the neo-emo side of minimal-jump-up, neurotechliquidcore
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I guess I can understand why people may be slightly resistant to catagorization and sub divisions within the genre...
I met a sick hip hop mc once, I heard him freestyle and his skills were sick... So I was like.. yo! let me give you some of my hip hop tracks to lace... He was cool with that, so I dropped off a cd full of instrumentals for him..
About two weeks later we spoke again.. I was interested to hear whether he had written any barz to my tracks. simply put, he hadn't.
He was a devout hip hop head, but he only liked a certain style within hip hop.. That put me off working with him... Especially as I didn't really know how to produce the style he was after and he wasn't willing to explore other styles within the genre..
Seeing as dubstep is a new sound, I guess people are still happy being part of a smallish underground community where everyone knows each other.. But unlike hip hop or dnb which have had several decades to mature - dubstep is on a hyper-accellerated path to maturity...
I suggest perhaps this is due in large to the ease with which we can communicate with one another (internet + mobile phones), and also share new material with one another, again online using Myspace/Youtube/forums etc...
Heck, even cheap flights make traveling to other places a reality for average peeps like me. Face it, even since we were kids the pace of life has accelerated and become more hectic.. We know other peoples business sometimes before they know it themselves lol
Anyway.. Hopefully I'm not coming across like an up tight punk..!! I have no interest being factional, I just like distorted bass music (fast or slow)
peace