text: The tour ultimately began in Toronto at the CNE Grandstand, which was plagued with about 2,500 protestors who objected to what they viewed as exploitation by promoters charging $14 per ticket. The opposition was organized by the May 4th Movement (M4M), the left-rebel group that grew out of the May 4, 1970 Kent State shootings. They attempted to crash the gates and scale the fence, and clashed with police, resulting in injuries to both protesters and policemen. To help calm the crowd, Metro Police Inspector Walter Magahay asked the promoter, Ken Walker, to lower ticket prices, but this would have left the promoters unable to pay the musicians. Subsequently, Jerry Garcia, in conjunction with Magahay, was instrumental in calming the unruly crowd by arranging a spontaneous free "rehearsal" concert in nearby Coronation Park upon a flatbed truck, while the scheduled show continued at the stadium. Once the free concert, which began at about 7:00pm on June 27, was announced, most of the ticketless fans dispersed to Coronation Park, with an initial attendance of about 6,000, thereby resolving the protest. Once the show at the CNE Grandstand ended at 12:30am, another 6,000 fans went to the park for the remainder of the free concert, which lasted until about 4:00am on June 28. Playing at Coronation Park were The Grateful Dead, Ian & Sylvia and the Great Speckled Bird, James and the Good Brothers, the New Riders of the Purple Sage (all of whom also performed at the CNE concert). Other local Toronto bands also played, including January, The People's Revolutionary Concert Band, Si Potma and P.M. Howard (of Beatlemania fame). There are some reports indicating a free concert was also performed on the second day, albeit to a much smaller crowd of about 500, as many of the protesters paid admission to the event on the second day. Many people spent the night and following day sleeping in the park until the second show at CNE Grandstand ended at 12:30am on June 29.