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I have selected the following websites for your reference: .knowledge.yahoo/question/? Qid=767122218 Staff As far back as the 1th century, a French musician named [Gulo] and translated as [Guduo] began to use four horizontal lines to indicate the level of sound, and then put a popular symbol indicating the length of sound in four horizontal lines to record music. This is the embryonic form of staff. When the Pope heard about this, he called Guro to Rome, gave him a big reward, and asked him to change all the music collected by the Roman church into "Guro notation", also called "four-line notation". In the 12th century, some people changed four horizontal lines to five horizontal lines, but this staff is still not perfect. Symbols such as bar lines and time signs have not yet appeared. It was not until the 16th century that the staff was gradually perfected, which was similar to what we use now. The use of staff: the names of five lines with bass clef can be remembered by Good Boy Does Fine Always. Four tones can All Cars Eat Gas to help memory. There are the following kinds of notes: whole note, half note, quarter note, eighth note, sixteenth note, thirty-two note and sixty-four note. Home4u.hongkong/_H4U/education/university/vtcchoir/learn's basic theory of music needs to know some of the most important symbols or marks in the music score. (1) staff (2) clef (3) key signature (4) time sign (5) section line (6) section (1) staff is composed of five horizontal lines with the same size and length, which is called "staff or staff". These five lines are called the first to fifth lines from bottom to top, and the space between the two lines is called "space", and there are four * * *. On each line or interval, one tone, * * * nine, can be recorded, and the names and pitches of these tones are determined by 』(clef. When the sounds other than these nine sounds are to be recorded, some short and unconnected ledger line are used to represent them. (2) There are three clefs: treble clef, bass clef and alto clef. The most common clefs are treble and bass clefs. (i) Treble clef (ii) Bass clef (iii) The clef in the middle is a combination of staff and clef, so that the sound on the score has a fixed name and pitch. In addition to the basic pitch, there are still inflections with temporary marks. There are three common temporary signs: (1) sharp-raising the basic pitch by a semitone; (2) flat-lowering the basic pitch by a semitone; (3) natural-restoring the raised or lowered tone to the original basic pitch; (3) key signature usually refers to the pitch position of the mode or the pitch position of "do" in the mode. In the staff, key signature is marked at the right end of clef. Key signature can be made up of no ascending or descending signs up to seven ascending or descending signs at most. (i) The key signature of a sharp sign includes: to identify the sharp tone, you only need to count one note from the last sharp sign. That pitch is the position of the "do" of the music. (ii) key signature in a flat sign includes: to identify the flat key, you only need to count four tones from the last flat sign. If there are two or more flat signs, the sound at the end of the second sign is the position of "do". (4) The time signature is on the score, and "note" is used to record the notes with different length relationships; Rests are used to record static moments of different lengths. And each note still has a relative rest. The following is a comparison between notes and rests: in the score, there are many vertical lines to divide the music into many small squares, which are called "measure or bar", and the vertical lines used to divide the squares are called "bar-line". Strictly speaking, notes do not directly represent the number of beats, but only provide a proportional relationship. To know how many beats a note represents in a piece of music, we need another sign: time signature. The time signature is a bit like a mathematical fraction, which consists of two numbers, upper and lower. The denominator represents what notes are used as "one beat" in this piece of music, and the numerator represents how many beats there are in each bar. The eight characters on the time signature mean that the eighth note is one beat, and there are three beats in each bar. The quarter note in the second bar is equal to 2 beats. And the sixteenth note is equal to half a beat. The characters 2 and 4 on the time signature represent that each bar consists of two rhythms with a quarter note as a beat. So in this example, the quarter note is equal to 1 beat and the eighth note is equal to half a beat. In addition to marking the time signature in the form of "fraction", there are two commonly used time signatures: c and. The former (usually called mon time) stands for, and the latter (usually called alla breve) stands for. If the beat of a piece of music is constant from beginning to end, the time signature only needs to be written at the beginning of the piece. If there is a change in the middle, you should write a new time signature every time you change. When the whole piece ends, a double bar-line is needed. This pair of small lines can be composed of a thin one and a thick one () or two thin lines (). The former represents the end of the whole piece, while the latter represents the end of the main passage. In music, the beat in each bar is strong and weak. The law of the strength of the common beat is as follows: after knowing the beat and the signature, you still need to know the tempo of the music. In the score, there are two common shorthand numbers. The first one is written in Italian, such as: Moderato
Andante
Allegro, etc. The second is represented by numbers. For example, = 1 means there are 1 quarter notes in one minute. I hope to help you!