Audiation
hearing and comprehending in one's mind the sound of music that is not and may never have been present.
Music Aptitude
the potential to achieve in music.

Music Achievement
accomplishment in music.
Developmental Music Aptitude
music potential that is affected by the quality of environmental factors. A child is in developmental music aptitude stage from birth until approximately age 9.
Stabilized Music Aptitude
music potential that is no longer affected by environmental factors. A child enters the stabilized music aptitude stage at approximately age 9 and stays there throughout life.

Skill learning sequence
a curriculum that includes all the discrimination and inference skills, taught sequentially in conjunction with tonal or rhythm content learning sequence.
Content learning sequence
contains all classifications and functions, tonal or rhythm. Taught in combination with skill learning sequence.
Discrimination learning
the lower of 2 levels of skill learning. Students are taught skills, content, and patterns by rote. Discrimination learning is a readiness for Inference learning.

Inference learning
the higher of 2 levels of skill learning. Students are guided to learn skills, content and patterns by teaching themselves. Students are not taught by rote.
Discrimination learning levels
aural/oral, verbal association, partial synthesis, symbolic association-reading, symbolic association-writing, composite synthesis-reading, composite synthesis-writing.
Inference learning levels
generalization aural/oral, generalization verbal, generalization symbolic, creativity/improvisation aural/oral, creativity/improvisation symbolic, theoretical understanding aural/oral, theoretical understanding verbal, theoretical understanding symbolic.