Answer:
A (Perfect Octave) is 4 (an interval that marks the repeat of the musical alphabet).
B (Diatonic) is 2 (a type of scale consisting of whole steps and half steps).
C (Perfect 4th) is (an interval sounding like "here comes the bride").
D (Half Step) is 7 (the smallest interval in the musical alphabet).
E (Rote) is 6 (learning 'by ear' as opposed to reading).
F (Unison) is 5 (having the same frequency or pitch).
G (Chromatic) is 3 (moving by half-steps up or down).
Explanation: