Close up of stage , with 2000 orchestra plus 22000 Choir , plus 100 Boston Anvil Beating Firemen , plus 100 full size artillary guns , plus all the church bells of Boston . Note the height of the Soprano who is singing there .And this day there were 50000 spectators in the stadium and a further 50000 sitting outside listening . P S Gilmore as an Irishman should be remembered partially but not chiefly for the creation of the largest Musical events in the 19th or 20th Century up to Live Aid or Band Aid .