It is such a brilliant idea to listen to music in subway. You will not hear the scream of the break when the subway train stop. You do not need to listen so many apologize and announcement which is not of your interest at all and quite depressing.
As a daily ttc rider, I would rather the service was provided by public service . As long as the quality of the service is maintained at certain level. According the poll http://betterttc.com/content/what-do-you-think-about-ttc, there are a lot to do along the way to chang the result of this poll.