are structured in a conventional manner.^66 Similarly, melodic redundancy enhances infants’
retention of conventional and unconventional melodies, but comparable redundancy
enhances adult performance for conventional melodies only.^61 In general, musics of the world
capitalize on human processing predispositions (e.g. the preference for consonance and
8
Major Unequal-step Equal-step
0.8
0.6
0.4
0.2
0
Mean
d
Figure 1.3 Infant discrimination (d) scores on the ascending-descending major scale, artificial, unequal-step
scale, and equal-step scale. Error bars indicate standard errors. Figure reprinted from Trehub et al.^70 with
permission.
doh
ti
la
sol
fa
mi
re
doh 1
2
3
4
5
6
7
1
1
2
3
4
5
6
7
1
Pitch (log Hz)
Major Unequal-step Equal-step
Figure 1.2 Schematic depiction of the major, artificial unequal-step, and equal-step scales. Figure reprinted from
Trehub et al.^70 with permission.