It is quite easy to read the scores of pieces written in C major, simply because there are no key signs in this key. For pianists and guitarists, this key is simple, for violinists, it is difficult. It is from C major that the study of musical notation begins.
Natural scale
Using the example of C major, you can draw up a diagram of the structure of any major scale. To do this, it is enough to find the "C" sound on the keyboard and play the scale from it only by the white keys. Do not forget that the distance between adjacent keys, be they white or black, is always ½ a tone, that is, between white keys there can be a half tone and a tone, depending on whether there is black between them or not. Calculate the distance between "to" and "re". It constitutes a tone, and the interval between sounds is a large second. The same interval between "re" and "mi", but between "mi" and "fa" - only half a tone. If you look further, it turns out that in a group where there are three black keys, three large seconds first follow, and at the very end - a small one. So the scheme of the structure of the major scale can be written as 2B-2B-2M-2B-2B-2B-2M. If you substitute the number of tones or semitones in the formula, it will look like 2T-1 / 2T-3T-1 / 2T.
Major triad
Using the example of C major, it is very easy to compose formulas, which can then be used to build any chord in any key. For example, build a tonic triad. It consists of odd grades, except for the seventh. Such sounds in C major will be "C", "E" and "G". Instead of the seventh step, the eighth is included in the tonic triad, it is also the first, taken an octave higher. That is, the full tonic triad looks like Do1-E-G-Do2. Between the first and third steps there is a large third, between the third and fifth - a small one. The fifth step is located from the first at a distance of a fifth down or a fourth up. The tonic triad has inversions. They are built like this. Write down the tonic chord. Then move the lower sound one octave higher. The result is an E-Sol-C chord. This is a tonic sixth chord. The second call will be a quartext chord, which looks like "g, do, mi". The full tonic chord also has two inversions.
Harmonic Major
Harmonic in C major is a scale in which “A flat” is taken instead of “A”. It sounds a bit like a minor. The sixth step is lowered when moving both up and down. The harmonic major is built according to the scheme 2T-1 / 2T-T-1 / 2T-1 1 / 2T- ½ T. As in the harmonic minor, the lowering sign (flat) is not set at the key, but, for example, in the recording of a piece, it can to appear. In this case, it will not be a random sign of A-flat, the whole key in which the work is written must be defined as harmonic major.
