Thursday, June 27, 2013

Lesson 3. Intervals

Lesson 3 Intervals


Part I. names and qualities of intervals

Like key signatures, intervals can also me major and minor.

M1
M2
M3
P4
P5
M6
M7
P8

Here, you can see the steps to calculating intervals
F-C is a P5th.  E-G is a M3rd, G-C is a P4th
A-B is a M2nd. B-G is a M6th.  C-B is a M7th.  and A-A, is a P 8ve(Octave)
Fig1.calculating intervals

Fig.2 Making a Major interval minor.

To make a major interval minor, all you need to do is lower the upper note one half-step.


Fig.3 Further altering intervals
to make an interval diminished, lower the upper note of a PERFECT interval.  
To make an interval Augmented, raise the upper note of any major or perfect interval.


Fig.4 Inverting intervals

Inverting intervals changes their name AND quality
Major intervals become minor and vice versa.  Perfect intervals are still perfect.  And diminished intervals become augmented and vice versa.



Fig.5 Interval inversions

Here are the interval inversions and Qualities.