It takes an iron will and a penchant for risk to submit to the risky calculus of the day-long music festival. In the weeks leading up to the Treasure Island Music Festival, there was no doubt that the lineup would yield something for just about any modern music fan from dreaded dubstep nodders to house bangers to junglists to those with a love of guitars and human voices and all points on the music appreciation spectrum in between. With a Saturday lineup that featured MGMT, Crown City Rockers, M