Meditation by Piano: Yesterday in Fairchild Chapel, Eric Satie's 15 hour piano piece, "Vexations," was performed by a series of pianists who traded off half hour slots from 7 a.m. to 11 p.m. The piece consists of a few bars of music repeated over 450 times. People came and went freely, some stopping for a few minutes and others for a few hours. (photo by Zach Fried)