Why do the fourth and fifth

An interval is said to be inverted when the order of the notes changes. For example, when the interval C and A: …is played or spelled in such a way the A comes before C: …an inversion is produced.

In a nutshell, the inversion of C and A: …is A and C: The inversion of an interval changes its quantity and quality. For example, C and A: …is a major interval, while A and C: …is a minor interval. When a perfect interval is inverted, it remains a perfect interval. Fourth and fifth intervals are used interchangeably most of the time.

For example, the music clock:. A clear understanding of the relationship between fourth and fifth intervals will explain why they are used interchangeably. Intervals change when they are inverted and we highlighted the change in quality in the last segment. In addition to the change in quality, there is change in quantity.

Each principal energy level has one sublevel containing one orbital, an s orbital, that can contain a maximum of two electrons. The single electron of the hydrogen atom will occupy the 1s orbital when the atom is in its ground state. The orbital names s, p, d, and f stand for names given to groups of lines originally noted in the spectra of the alkali metals.

These line groups are called sharp, principal, diffuse, and fundamental. In other words, 1 no more than two electrons can occupy the same orbital and 2 two electrons in the same orbital must have opposite spins Figure 46 i and ii.

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Are you using the tip of the finger? And I really do mean the tip — the very top part of the finger. Repeat this with the fifth finger on the next note, G. Repeat the F and G slowly, using the fourth and fifth finger, and play with a heavy touch. Repeat the exercise with the left hand.