First of all, the tone of the song is seven basic tones, namely, C, D, E, F, G, A and B, that is, 1234567, instead of ABCDEFG, and there are five high-pitched # C, # D, # F, # G and # A. If they are in the same octave, of course, C is the lowest and B is the highest.

in an octave, b is the highest and c is the lowest. But it is not an octave, which means that there is no way to compare it in different intervals. For example, on the keyboard of a piano, there are a high-pitched area and a low-pitched area, and any note in the high-pitched area will be higher than that in the low-pitched area. The structural form of

tone focuses on the specification of the interval relationship between the tones in the tone series.

Each tone in a scale can be used as the tonic to establish a mode, which can form seven different natural modes of seven tones.

Tone is mainly determined by the frequency of sound, and it is also related to the sound intensity.

CDEFGAB is a sound name, and doremifasollasi is a roll name. There are 12 sound names, 7 full tones are CDEFGAB, and 5 semitones are # c, # d, # f, # g and # a. The fixed roll name method is used in the staff, and the sound names are read directly when reading the music.

Extended information:

Tone is the fixed height of music, key signature is the mark of tone, and the rising and falling marks written behind the clef at the beginning of each staff are key signature.

1. There are 7 major syllables with sharp sign: G major (1 sharp sign); D major (2 sharp signs); A major (3 sharp horns); E major (4 sharp signs); B major (5 sharp signs); F sharp major (6 sharp signs); C sharp major (7 sharp signs);

2. There are 7 major syllables with flat sign: F major (1 flat sign); B flat major (2 flat signs); E flat major (3 flat signs); A flat major (4 flat signs); D flat major (5 flat signs); G flat major (6 flat signs); C flat major (7 flat signs);

In addition to C major, the above-mentioned ascending and descending signs each constitute 7 keys, which are all arranged according to the pure fifth degree, thus forming 15 keys. But in fact, there are only 12 tones with different heights, among which 3 pairs are equal tones, namely: C-sharp major = D-flat major; F-sharp major = G-flat major; C flat major = B major; (A sharp minor = B sharp minor, D sharp minor = E sharp minor, A sharp minor = G sharp minor. )