123456 is a numerical notation borrowed from mathematics.
First, the white keys and black keys on the piano keyboard are arranged according to fixed rules, and the sound with a fixed height on each key is the sound name.
Modern music uses seven English letters C D E F G A B (or its lowercase letters) to mark the sound names. The pitch distance between these seven different high-pitched and low-pitched adjacent sounds can be divided into semitone and whole tone, in which the relationship between E and F, B and C is semitone, and the relationship between other adjacent sounds is whole tone.
Secondly, the seven "roll-call" pronunciations of major scales are:
Do, re, mi, fa, sol, la, si (English pinyin)
Digital symbols borrow mathematical annexes as follows:
1、2 、3 、4、5 、6、7
Extended data:
Fixed roll call method
Singing the sound names C, D, E, F, G, A and B as do, re, mi, fa, sol, la and Si respectively, which is fixed and does not change the singing method according to the change of tonality mode, is called "fixed roll call method" (that is, the roll call of each sound name is fixed. )
The high notes of each sound name are fixed, so are their positions on the keyboard and violin, and their positions on the staff. Then, their volume names are fixed, so their corresponding relationship is fixed. Therefore, when you see the sound on the spectrum, you will immediately think of its name and position on the violin. It is very convenient to learn piano and violin.
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