Crispy Gamer writes: "1. Besides the new songs, the biggest gameplay addition is the option for three-part harmonies. Three color-coded bars scroll along the standard vocal track area, allowing each player to find their appropriate tone with ease. During sections without harmony, all three singers can help each other out on the single vocal track. Harmonix calls the setup "constructive harmony," meaning, basically, "you don't get penalized for being awful if someone is good."