Four live shows from John Mayer's current North American summer tour will be posted exclusively in the iTunes Music Store. Each Tuesday during the month of August, a 10-song collection called "As/Is" will be added until August 31st. "The wrong notes are as wrong as the right ones are right. In the end, the way the songs make you feel is the only thing that matters," Mayer says, describing the newly recorded material as "a mainline from the stage directly to the fans."