It's time to get the record store perspective on Record Store Day (April 18) from Tim Peterson, owner of Squeezebox Books & Music in Evanston, Ill. That’s where I line up each RSD morning, so I visited Peterson to hear him explain how it all works. How does he determine which and how many records to order? Does he usually get what he wants? Is it worse to over- or under-order? Do the first-in-line customers tend to be flippers or just big fans? When Taylor Swift has an RSD offering, does that boost other sales? Which of this year’s releases will be most in demand? What are the sleepers? What percentage of the store’s annual sales come from Record Store Day? We also dissect the types of RSD offerings, such as live albums (and the inevitable Grateful Dead box); picture discs and zoetropes; collections of demos, alternative versions and rarities; deluxe album editions; represses of albums you’ve never heard of; and various-artists compilations.