gTar by Incident Technology is the first digital guitar that anybody can play. Once docked with a smart phone, the gTar fret-board illuminates where fingers should be placed. The adjustable level of difficulty allows even an amateur to start strumming his favorite tune. At the easiest level, ‘SmartPlay’ forgivingly mutes out mistakes to encourage the beginner to practice basic guitar skills. As a player becomes more proficient, higher difficulty levels spot errors and hone the player’s skills.