Intervals are the fundamental building blocks of music will enable us to read and write music and, most importantly, will help us to build the sounds and harmonies. But the words, such as major, minor, augmented, has been declining, enharmonic and compound leaves many people are a little confusing, I hope that this article is planning to throw some light on this issue.

“The distance between the” two states known as the interval. This is the difference between the pitch of two states. Size, or the amount of distance shall be measured numerically.

If we think, ‘C’ scale is 8 points out; CDEFGABC numbered 1 through 8. For example, interval-CG is the 5th G is 5 notes above C. The interval CF is a 4th such as the F 4 has been found above C.

All intervals must be measured on the first note of the scale. These intervals have given name as well as the numerical value of the order, and the progress they are: the CD is a great 2nd, the CE is a great 3rd, CF is a perfect 4th, CG is a perfect 5th, CA major 6th, CB large 7 and, finally, the CC is a full octave.

The interval, which are complete in the so-called because they have a certain purity about them that comes from the overtones and the upper partials, which are contained in them (these are explained in another article)

Intervals may be raised or lowered, which half-step/semitone. If a large interval has been chromatically reduced by a half-step, it will be a small interval for example, the CE is a great 3rd, if it has been lowered by half a step (C-Eb) interval will be small 3rd.

If a full interval has been chromatically reduced by a half-step, it will be reduced interval, namely the full 4th lowered a half-step will be diminished 4th.

If a large or perfect intervals, has made a half-step then become augmented interval, namely the complete 5th should have been supplemented by 5.

Compound intervals are the ones that extend into the 2nd octave. CD (the next octave) is the name of either a large 9th, or the composition of the compound large 2nd. CF (next octave) is a perfect 11th, or the composition of the compound complete 4th.

Enharmonic intervals are those who are different from the name, but did not pitch, for example, CG # has been completed by 5th-and C-Ab is a minor 6.

When the intervals are upside down they are to reverse the relative position of the notes. CG (perfect 5) will be GC, which is a perfect 4th, 3rd would have been 6. Perfect intervals, the upside-down when the remains excellent, for example CG is a perfect 5th would have been a full 4th, when inverted, will be a large flat minor, the minor will be high, will be reduced to complete and will be completed in decline.

These rules apply to all scales.