“…Brown, Martinez, Hodges, Fox, & Parsons, 2004;Brown, Martinez, & Parsons, 2006) -it is normal for some children's vocal pitch matching to be less accurate in the early phases of singing development (cf. Rutkowski, 1997;Welch, 1986;Welch et al, 2009). However, simpler, more purely musical structures -in the sense that there are no words attached that are required to be learned at the same time, such as in the singing of single pitches and patterns of pitches (e.g.…”