“…Earlier efforts focused either on interventions that might help students develop the skills (Joyner, 1969;Yank Porter, 1977) or age-related changes in singing accuracy and proposed models for how such skills might develop (Welch, 1985;1986). More recently, music educators have explored the influences of training, maturation, and task difficulty on children's singing accuracy (Demorest & Clements, 2007;Nichols, 2013;Welch et al, 2009) and use of singing voice (Rutkowski & Miller, 2003). Researchers in psychology and cognitive neuroscience have become interested in poor pitch singing in adults as a kind of cognitive deficit, and have begun to explore the various conditions under which people have difficulty singing accurately Hutchins & Peretz, 2012;Loui, Guenther, Mathys, & Schlaug, 2008;Pfordresher & Brown, 2007).…”