William C. Hartshorn, ed. Music for the Academically Talented Student in the Secondary School. National Education Association Project on the Academically Talented Student and the Music Educators National Conference (Washington: National Education Association or Music Educators National Conference, 1960).
2.
Willi Apel, Harvard Dictionary of Music, p. 4: absolute music is that music which is dissociated from extra-musical implications ... used most frequently in contradistinction to program music, i. e., music in which pictorial or poetic ideas are portrayed.
3.
A lecture with musical examples; ColumbiaLP Masterworks.
4.
Hartshorn, op. cit., pp. 18-19. As prescribed by this publication, "mature musical meanings" are those aspects of music which should be perceived by the academically talented student.
5.
Vide, Means of Collecting Evidence, six sources of observation.
