Specifically, I uploaded a coloring page file on Staples.com and had it enlarged as a 3-by-4-foot engineering print. These are the large black-and-white prints typically used for engineering or ...

Mixing/mastering engineer Elton “L10” Chueng has worked with Chance the Rapper for years, handling much of 2013’s Acid Rap before working on several songs on the recently released Coloring Book.