Jazz Theory 3  QUIZ ANSWERSQuiz Answers  Ear Test Answers  Back to Quiz
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Quiz 3 Answers
A.
P = perfect , M = major
1 = M3

2 = M7

3 = M2

4 = P4

5 = M6

6 = M7

7 = P5

8 = M3

9 = M6

10 = P4

11 = P5

12 = M2

13 = M6

14 = M7

15 = M3

B.
1 = M6

2 = M3

3 = P4

4 = P5

5 = P4

6 = P4

7 = M2

8 = M7

9 = M3

10 = M6

C.
1 = C

2 = B

3 = B

4 = D#

5 = Bb

6 = F#

7 = Ab

8 = C#

9 = E

10 = F#

D.
 A = 71 cm
 G = 80 cm
 F = 90 cm
 D = 107 cm
 C = 120 cm
Calculation
F and G are of course easy :
 F = C x 3/4 = 120 cm x 3/4 = 90 cm
 G = C x 2/3 = 120 cm x 2/3 = 80 cm
Now look at the D major scale : D  E  F#  G  A  B  C#  d
You see here that D is a perfect 4th below G. What to do here ? :
The d above the G would be :
d = G x 2/3 = 80 cm x 2/3 = 53.3 cm
This d is half the length of the D one octave lower. In other words the D we are after has a vibration string twice as long as d, therfore :
 D = G x 2/3 x 2 = 80 cm x 2/3 x 2 = 106.6 cm
Finally A is a perfect 5th above D, therefore :
 A = D x 2/3 = 106.6 cm x 2/3 = 71 cm
E.  F.
Showing in order : P1  P4  P5  P8
E  A  B  E  A  D  E  A  D  G  A  G  G  C  D  G
 C  F  G  C  F  Bb  C  F  Bb  Eb  F  Bb  Eb  Ab  Bb  Eb
 Ab  Db  Eb  Ab  Db  Gb  Ab  Db  F#  B  C#  F#  B  E  F#  B

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Answers to Ear tests 6 & 7
Ear Test 6  12 intervals, all perfect.
1 = P5

2 = P8

3 = P5

4 = P4

5 = P5

6 = P8

7 = P4

8 = P4

9 = P8

10 = P5

11 = P8

12 = P4

Ear Test 7  12 intervals, perfect and major.
1 = P4

2 = M2

3 = M6

4 = P5

5 = M7

6 = M3

7 = M3

8 = P4

9 = M6

10 = M2

11 = M7

12 = P8

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© 1998 Michael Furstner (Jazclass)
