The beginning of a piece of music does not necessarily have to start from the first beat. Therefore, we call the music played from the first beat as a strong attack beat, and the music played from the second, third, fourth... beat as a weak attack beat. No matter which time system it is, the first beat is the strongest. sound, so the music played starting from the first beat will be called a strong attack, while the music starting from other beats will naturally be called a weak attack.

"Pat" in simple terms means you shoot with the palm of your hand. If you use two hands to shoot, then one photo and one close is called one photo. If you just tap it down, it is called half a photo. If you lift it up again, it is also half a photo. So it counts. One up and one down add up to one beat. (equal to half a beat plus half a beat) strong and weak onsets

Duration

1: Representation of note time value:

Notes of Western music Most of the lengths are divided into two parts, followed by the three-part method. It was only after the 19th century that various methods of dividing lengths began to appear.

(1) Dichotomy:

As the most common method of dividing the duration of notes (rests), dichotomy starts from the whole note, and the duration after division is the note before division. Half the value. The names are as follows:

Whole note, half note, quarter note, eighth note, sixteenth note

Full rest, half note, quarter note, quarter note, eighth note, sixteenth note

In the bisection method, dotted is a method used to increase the duration of a note by one-half. For example: a dotted half note is equal to the length of a half note plus a quarter note.

The two-minute system is the mainstream of note duration in Western music. If it is further subdivided, it can be divided into thirty-two minutes, sixty-four minutes... and other note durations, but it is rarely used.

(2) Rule of thirds and other division methods:

Based on the method of half notes, such as dividing quarter notes or half notes into thirds, and also into fifths and sixths. There are even more parts, such as sextuplets, septuplets, etc. Such thin split notes are usually used in fast passing passages. : Quarter note Quarter note triplet Half note Half note triplet

Time signature

During the progression of a piece of music, the musical sound usually comes with a certain intensity. Repeatedly, for example, the common waltz is performed in the three-beat form of "Peng-Cha-Cha" (strong-weak-weak), which is the time signature.

1: Two-beat system: The two-beat system is a beat system in the form of strong-weak, strong-weak dynamics.

The numbers above represent the number of beats in a measure. The numbers below represent how many quarter notes are used as one beat. For example, 2/4 represents a measure with 2 beats, and a quarter note is used as one beat; 4/4 represents a measure with 4 beats, and a quarter note is used as one beat.

(2). Three-beat system: The three-beat system is a beat system in the form of strong-weak-weak dynamics.

Example: 3/4 means there are 3 beats in one measure. , use a quarter note as one beat; 3/8 represents a measure with 3 beats, use an eighth note as a beat; 6/8 represents a measure with 6 beats, use an eighth note as a beat; 9/8 represents a There are 9 beats in a measure, and eighth notes are used as one beat.

(3). Back-beat subsystem: The back-beat subsystem is a comprehensive application of the first two. There are two common types: 5-beat and 7-beat.

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