“Jonathan Coulton sat in Gorilla Coffee in Brooklyn, his Apple PowerBook open before him, and began slogging through the day’s e-mail. Coulton is 36 and shaggily handsome. In September 2005, he quit his job as a computer programmer and, with his wife’s guarded blessing, became a full-time singer and songwriter. He set a quixotic goal for himself: for the next year, he would write and record a song each week, posting each one to his blog. “It was a sort of forced-march approach to creativity,” he admitted to me over the sound of the cafe’s cappuccino frothers. He’d always wanted to be a full-time musician, and he figured the only way to prove to himself he could do it was with a drastic challenge.” - × × ×