How many types are there in acylation?

There are so many different types because they are all used for different purposes in different situations.

http://wiki.answers.com/Q/How_many_types_of_reception_do_you_know"

Emo screamo, Hardcore screamo, Metal, Pop rock, Rock, Hardcore rock, Hardcore metal, Soft rock, Punk, Hardcore punk, Pop punk, Jazz, Emo, and Rap!! :) Ps. My favorite is Hardcore screamo and Metal!...

Really, none are! That doesn't mean they're edible though.

there are three known speies