A marketing category and style tribe (sort of) based around fandoms that have evolved over the last century or so.
"Rock" is just a marketing category, and a listener doesn't need to be confined by it.
At eBay, event ticket auctions are a distinct marketing category.
The move was considered an indication of how ties between agencies and advertisers can fray, particularly in competitive marketing categories like financial services.
Meanwhile the marketing category has changed to include more books oriented to older teens.
As a marketing category, it's a grand hodgepodge.
Stranded between marketing categories, he never had a major hit, and during the 1980's he retired from music.
As members in good standing of a consumer culture, we've all been trained, Pavlov-style, to respond to the most easily digestable marketing categories.
It doesn't fit into any of the marketing categories.
The term originated in the late 20th century as a marketing category and academic classification for non-Western traditional music.