Form Massey Hall's webpage:
"Please turn off your cell phones, pagers, watch-alarms before entering the auditorium.
Use of cameras, video-audio recording devices in the auditorium is strictly prohibited.
If you are a latecomer or leave the auditorium during the performance, you will be seated at an appropriate break in the performance, as determined by the conductor or guest artist.
Please refrain from quiet conversations, whispers, singing, and humming and crinkly candy wrappers as the acclaimed acoustics of this auditorium carry your conversation and disruptions all the way to the stage as well as to the patrons around you. " XD