The event, organized by the school's orientation team, university staff and Ryerson Students' Union, involved participants playing the cowbell part to Blue Oyster Cult's "Don't Fear the Reaper" while local rock band SEAM handled the rest of the song, the school said.
Organizers said the 1,003 participants beat the record of a 640-strong cowbell ensemble set by a Boswil, Switzerland, group in September 2009.
The record has been submitted to Guinness World Records for certification, organizers said.
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