You’ve seen them and if you haven’t you’re damned lucky. If, in fact, you really have never experienced it, head on over to YouTube and type in the name of your favorite band. Then add the word “live” to the search bar and see what comes up. There they are, dozens upon dozens of clips featuring your beloved pop/rock/country combo, image jittering and jumpy while the distorted noise pouring from your speakers reminds you that, even with the convenience factor and ease of use, a cellphone still has a long way to go to be a really reliable portable video camera. It is, however, the new go-to accessory for anyone who believes in the democratization of art, who doesn’t know the word “bootleg” or the decades of artistic angst over the illegal capturing of a concert or song.