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You have learned how to work with intervals from
the Perfect Prime to the Perfect 8
The 3 A Major interval is one half
step more than a minor interval of the same numerical name. A minor
interval is one half step less than a Major interval of the same
numerical name. You first learned this with Major 3
A diminished interval is always one half step less than a minor interval of the same numerical name. An augmented interval is always one half step more than a Major interval of the same numerical name. In the illustration below, the different interval types increase by one half step when you move to the right. They decrease by one half step when you move to the left.
You must memorize the order
of interval types (diminished, minor, Major, Augmented), which moves from the
least number of half steps to the greatest number of half steps.
Then you will know the number of half steps to add or subtract for
each type of interval to change it into a diminished or augmented
interval. Remember, these relationships are valid only for intervals
of the same numerical type. For example, a minor 3 A Perfect Interval always
adds or subtracts one half step to get an Augmented or diminished
interval of the same numerical type. For example, a Perfect 5
The chart below summarizes the numbers of half steps from each interval type to get an Augmented or diminished intervals.
If you decrease the number
of half steps in a minor 3 If you decrease the number
of half steps in a minor 7 If you increase the number
of half steps in a Perfect 5 When you change an interval
to its diminished or augmented form, remember to keep the number
part of the name (a 3
Change the second note in each interval to make it to an Augmented interval. Remember to keep the same letter name. The name of the given interval is in parentheses. The second note in each interval is above the first note. Use the Interval Answer Charts to check your answers.
Change the second note in each interval to make it to a diminished interval. Use the Interval Answer Charts to check your answers. Remember to keep the same letter name. The second note in each interval is above the first note.
Continue to recite the Cycle of Thirds forward and backward daily. Weekly, practice spelling triad and seventh chords for five minutes and practice constructing intervals for five minutes. Now that you have completed the section on intervals, you can go to the appendix and learn how to spell all other types of chords based on knowing their interval structure. Be sure to practice each type of interval at least a couple of times. In your interval practice, also add augmented and diminished intervals by first finding a Major, minor or Perfect interval, then converted to a diminished or augmented interval. |

Copyright © 2008-2011 Kenneth J. Maxwell Jr.