so what do you write about when writing reviews? do you talk about each track individually or the whole album or what?

and as far as instrument teqnique goes.

and about how long are they allowed to be?
"Hey kid. You wanna cigarette?"

"No thanks! I/m already hooked on Fonicks!"

Reading through reviews of similar products will give you an idea of how most people write them, and Dyuha has some blogs on reviews, the first one's here, you'll be able to find the rest in with his other blogs.