“…This was a change from The School Music Program (Lehman et al, 1974) Outcome 1: "Is able to make music alone and with others," and the second edition of The School Music Program (Hoffer et al, 1986) (Doscher, 1994). Aural characteristics have included formant frequencies (Doscher, 1994), timbre (Howard, Williams, & Herbst, 2014;Sergeant & Welch 2009), voice source production (Barlow & Howard, 2005), and singing range (Barlow & Howard, 2005;Cooksey, 1993;Doscher, 1994;Moore, Fyk, Frega & Brotons, 1995Pedersen, 1997;Sergeant & Welch, 2009;Wassum, 1979;Welch, 1979).…”