depends on how you see perception, it states that the night be4 people were paying 110 bucks to see this guy play and he sold out, this was a pre planned perception

as everyone knows the morning/work run is filled with a lot of obstacles the drown out the outside world, will i make the train, will there be any delays, will the man with the bo that normally stands next to me or will the seat be strewd with chewing gum , be of sick today etc etc

so it is definately a worthy experiment and for what its worth, my experiment was a projected perception as at that time of the day the perceptive cogs of the mind are not receptive and we all know  a lot of buskers are located around tube stations it is common, so people listen but they never stop just the way it is