I didn't coin the term 'rockism'. It came up in the writings of critics like Paul Morley and Simon Reynolds in the UK music press in the 80s. 'Rockism' is a conservative and Romantic ideology of authenticity encountered in rock and pop music. Here are some of the core tenets:
rock music should be bass, drums, guitars
it's about artists and songs, not about production
a good artist is 'keepin' it real'
some artists are more 'real' than others
good songs are timeless
at some point in the past they 'got music right'
music has value to the extent that it's one person emoting sincerely
although the real is very important, the real is today absent (metaphysics)
Other artforms have their own forms of rockism. In art, Stuckists believe that art should be representational, that painting is more 'real' than video, etc etc. Check their manifesto, which begins 'Stuckism is the quest for authenticity' and continues through 'artists who don't paint aren't artists' to 'painting creates worlds within worlds, giving access to the unseen psychological realities that we inhabit' (the metaphysical bit).
More on rockism:
http://blogcritics.org/archives/200
http://rockcritics.com/features/gallery
http://www.livejournal.com/users/im
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