# How to solve the interval

This time, let’s consider the interval by giving some examples with reference to the explanation so far.

Now consider the interval below.

The note is from “mi” to “fa”.

First of all, “mi” is set to 1 and mi fa is increased by two, so the width is 2nd .

Next is how many half tone “1/2 step” there are,

Since “mi” to “fa” have only a half tone “1/2 step”, the interval is ” m2nd “.

Let’s go one after another like this!

The next problem.

The note is from “re” to “fa”.

First of all, the width is 3rd because “Re” is set to 1 and Re Mi Fa is increased by three .

Next is how many half tone “1/2 step” there are,

whole tone from “re” to “mi”,

From “mi” to “fa” is a half tone “1/2 step”,

Since there is one half tone “1/2 step” from “re” to “fa”, the interval is ” m3rd “.

Then, the next problem.

This time it is the interval from “fa” to “re”.

Counting “fa” as 1 , up to “re”, it goes up by 6 as fa sol la ti do re .

The width of the interval is 6th .

Next, if there is one half tone “1/2 step” from the reference note (lower note) to the upper note, it is major.

If two half tone “1/2 step” are included, it becomes a minor .

If you calculate the interval from “fa” to “re”,

“fa” to “sol” is whole tone,

“sol” to “la” are alsowhole tone,

From “la” to “shi” is also whole tone,

From “shi” to “do” is a half tone “1/2 step”, one came in here,

From “do” to “re” is whole tone,

From “fa” to “re”, there was only one half tone “1/2 step” from “shi” to “do”, so it became a major scale.

The interval will be the 6th major.

The next problem is still going on.

This time it is the interval from “sol” to “fa”.

Counting “sol” as 1 , up to “fa”, it goes up by 7 as sol la ti do re mi fa .

The width of the interval is 7 th .

Next, as with the 6th , if there is one half tone “1/2 step” from the reference note (lower note) to the upper note, it is a major.

If two half tone “1/2 step” are included, it becomes a minor .

If you calculate the interval from “sol” to “fa”,

“So” to “La” is whole tone,

From “la” to “ti” is alsowhole tone,

From “ti” to “do” is a half tone “1/2 step”, one came in here,

From “do” to “re” is whole tone,

From “re” to “mi” is also whole tone,

From “mi” to “fa” is a half tone “1/2 step”, one is also here,

There are two half tone “1/2 step” from “sol” to “fa”, from “ti” to “do”, and from “mi” to “fa”.The interval will be minor 7th .

Let’s go two more!

Next, let’s consider the case from “la” to “re”.

Counting “la” as 1 , up to “re”, it goes up by 4 as la ti do re .

The width of the interval is 4th .

For 4th and 5th ,

Perfect if there is one half tone “1/2 step” from the reference note (lower note) to the upper note.

Augmented if there is no half tone “1/2 step”

If there are two half tone “1/2 step”, it will be diminished .

If you calculate the interval from “la” to “re”,

From “la” to “ti” is whole tone,

From “shi” to “do” is a half tone “1/2 step”, one came in here,

From “do” to “re” is whole tone,

From “la” to “re”, there is one half tone “1/2 step” from “ti” to “do”.

The interval will be perfect 4th .

So, the last problem.

Next, let’s consider the case from “ti” to “fa”.

Counting “ti” as 1 , up to “fa”, it goes up by 5 as ti do re mi fa .

The width of the interval is 5th .

In the case of the 5th as well, the idea is Perfect , augmented , and diminished .

From “ti” to “do” is a half tone “1/2 step”, one came in here.

From “do” to “re” is whole tone,

From “re” to “mi” is whole tone,

From “mi” to “fa” is a half tone “1/2 step”, and one is here again.

There are two chromatic scales from “ti” to “do”, so

The interval is the diminished 5th .

It’s been a long time, but now you know how to calculate the interval .

Please remember that intervals are indispensable for studying music in the future.

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