“…As such, they have provided information to which researchers typically lack in-depth access. For example, researchers have learned from parents that parents believe their use of music with their young children may achieve value beyond entertainment, helping them to pass along cherished traditions; enhance and encourage social bonding; accompany daily routines; and promote young children’s self-regulation, language acquisition, and music achievement (Adessi, 2009; Barrett, 2009; Berger & Cooper, 2003; Bergeson & Trehub, 1999; Calissendorff, 2006; Custodero, Britto, & Brooks-Gunn, 2003; Custodero, Britto, & Xin, 2002; Custodero & Johnson-Green, 2003, 2008; Dai & Schader, 2001; de Vries, 2009; Gibson, 2009; Gratier, 1999; Hendricks & McPherson, 2010; Koops, 2011; Lum, 2009; Papousek, 1996; Robb, 1999; Summa-Chadwick, 2009; Trehub, 1999; Trehub et al, 1997; Valerio, Sy, Gruber, & Stockman, 2011; Yazejian & Peisner-Feinberg, 2009; Youm, 2008). Researchers who study child development have found that parents are able to document children’s cognitive, physical, language, social, and emotional development reliably.…”