John Petrucci Master Class & Clinic - October 9, 2004 Thanks to David Rodgers and Juan Mantilla for many of these photos. On Oct. 9th, 2004, the Raleigh Music Academy hosted a Master Class and Clinic with none other than John Petrucci, the extraordinary guitarist of Dream Theater. John took time out of his busy schedule with Dream Theater to offer his expertise in a Master Class, which was followed by a clinic later that evening.