This is what I'm asking. Everyone is answering "I do genre" or "I do A-Z", or whatever. Which is fine; nice to hear from you.

But what I was interested in is: if you do genre, how do you select where to put whom?
I gave Elvis as an example. Do you put his early stuff under rockabilly, his country stuff under country, and his 70s stuff under rock and pop? Or do you do as Jefe does, and put it all under rockabilly/rock 'n' roll?
Do you have "metal" as a genre, or do you distinguish between stoner, black, death etc?
Do you have minor genres like post-rock, or do you put them in general rock and pop?
I have separate soul, funk, hip hop. HMV just calls it all "urban".
And so on.