The Rite of the Sprinkler:

Damage reports trickle in after concert hall deluge: “…(D)uring a Philadelphia Orchestra rehearsal, a sprinkler system began discharging dirty water over musicians and incoming music director Christoph Eschenbach… A second Steinway grand piano was damaged in Tuesday morning’s deluge at the Kimmel Center for the Performing Arts, some warping has begun to appear in the floor of Verizon Hall, and 11 orchestra musicians are reporting damaged instruments.” Philadelphia Inquirer