1. Reading: There are no readings of 8 and 9 in music. The readings of other numbers are as follows: 1 do, 2 re, 3 mi, 4 fa, 5 so, 6 la, 7 xi.
2. For example: You can listen to the episode "do-re-mi" in the movie The Sound of Music. This is the roll call of the notes. The note names are C, D, E, E, G, A.B.
3. The relationship between these tones is that except for 3, 4 and 7 i, which are semitones, the others are all whole tones.
4. Adding a small dot above the note means singing an octave higher, adding two dots means singing two octaves higher; conversely, adding a dot below means singing lower. To sing in octaves, add two dots to indicate two octaves lower. To accurately represent the absolute height of a note, key signature markings are also applied. The key signature is represented by 1=F, 1=G...etc.
Extended information:
1. Key signature
1. Those marks that are recorded after the clef in a certain order and position are called key signatures. The key signature always uses only the same type of diacritical mark, that is, sharp or flat.
2. The key signature of the simplified musical notation is generally represented by 1 equal to A, B, C, D, E, F, G. For example, 1=C means that the musical notation is notated in the key of C. If To indicate the key of the upgraded number, add a # sign or a b (flat) sign before the letter. You can refer to some simple musical notation picture examples.
3. 1=C 2=D 3=E 4=F 5=G 6=A 7=B
2. Notes
1. In simplified musical notation, the symbols that record the pitch and length of sounds are called notes. The symbols used to represent the pitch of these sounds are marked with seven Arabic numerals. They are written as:
2, 1, 2, 3, 4, 5, 6, 7 are read as : do, re, mi, fa, sol, la, si (Duo, Lai, Mi, Fa, Suo, La, Xi).
3. Notes are closely connected with pitch, and there is no note without pitch.
3. Pitch
1. The numerical symbols of notes such as 1, 2, 3, 4, 5, 6, and 7 represent different pitches.
2. Notes and pitches can be understood intuitively on the piano keyboard. Broadly speaking, there are always 7 notes in music.
Reference materials: People's Daily Online---Gongchi Pu: The world's earliest musical notation in China