FOOTNOTES
[A] All references to scales, intervals and enharmonic changes treat of the tempered scale.
[B] Theoretical keys appear in many compositions during transitions, but they are not obvious (except by analysis) because of the fact that their signatures do not appear.
[C] Capital letters are used to designate major keys and small letters to designate minor keys.
[D] Composers of the present day often use these intervals as chord factors.
[E] Many young children find difficulty in intonating small intervals and it is necessary in such cases to commence with large intervals and work toward the smaller intervals.