The usage of metronome is as follows:

Clockwork-rely on clockwork to provide power.

pull rod-the top of the pull rod is marked with .2346, which means how many beats per bar; For example, a quarter note of 2/4 is one beat, and 2 beats per bar, then it is pulled to 2, and the rhythm of playing is every two beats, and so is 6/8 beats.

dial-the data of the dial (ruler) represents the speed, and some scores will be marked with a note (usually a quarter note) = a number; ?

for example, quarter note =12, if it happens to be 2/4 or 3/4 at that time, that is to say, it is played 12 times a minute, and the number of 12 should be found on the vertical scale, so just push it to the corresponding number. Generally, it is ok to press this operation for 3/4 notes. Some times when 2/4 notes are drawn = a number, the beat should be 2/2 beats.

That is to say, the drawbar indicates the total number of beats in each bar, and the vertical ruler corresponds to the tempo of the song.

remove the transparent panel of the metronome and you will see a scale. It indicates that there is a pendulum rod with a pendulum hammer that can move up and down in the number of beats per minute (n) when the pendulum vibrates. The numb of scales opposite to that position of the pendulum indicate the number of beats of the pendulum per minute (there are two beats in a full vibration), from which the vibration period (t) of the pendulum can be calculated.

T=(2×6)/T (seconds)

Changing the position of the pendulum can change its vibration period.

in order to tell the time conveniently, a ring adjusting lever is installed on the right side of the lower part of the metronome box, which can make the ring ring every few beats. Remember the number of ringing sounds to find the time interval (t).

t=T/2×R=R/n×6 (seconds)

R is the number of beats for ringing once. By adjusting the position of the pull rod, you can change the number of beats of ringing once. If you don't need to ring the bell, just push the pull rod fully.

wind it up first, and be careful not to wind it too tightly. According to the actual requirements, adjust the beats per minute and the ringing frequency. The metronome should be placed horizontally and the amplitude of the pendulum should not be too large. Pay attention to maintenance after use.

when using, you should start counting from a certain ringing

English description of the beat speed of English words on the scale (non-standard translation). They are:

solemn adagio, extremely slow, slow, moderately slow, moderately fast, moderately fast, quickly, and fastest. Numbers 4-12 indicate specifically how many beats per minute are recorded at various speeds.

the numbers on the metal bars indicate the rhythm type. That is, the relationship between the strength of the beat:

where:

2 is the rhythm of two beats. The relationship between the strength of the sound is | strong weak | strong weak | ... repeatedly. This is a 2/4 beat mode. This mode is also called March.

3 is the rhythm of triple time. The relationship between the strength of the sound is | strong weak weak | strong weak weak | ... repeatedly. This is a 3/4 beat mode. This mode is also commonly called waltz.

4 is the rhythm of four beats. The relationship between the strength and weakness of the sound is | strong weak secondary strong weak | strong weak secondary strong weak | ... repeatedly. This is the 4/4 beat mode. This pattern is also commonly called ode.

6 is the rhythm of six beats. The relationship between the intensity of the sound is | strong weak weak secondary strong weak | strong weak secondary strong weak weak | ……… repeatedly. This is a 6/4 or 6/8 beat mode.

to put it simply, 2/4 beats, 2/4 beats, 3/4 beats, 3/4 beats and 4 beats. This beat type, expressed as a fraction, is adjusted to a few numerators.

the speed of the song can be adjusted to the corresponding position.

Extended information:

A metronome is a mechanical, electric or electronic device that can emit a stable beat at various speeds. After the first metronome was invented by Parisian E. Lulie in 1696, there are many kinds of such devices, the most commonly used one is the metronome invented by Austrian J.N. Maelzel in 1816.

1. Electronic metronome;

2. Mechanical metronome;

3. There is also a human voice metronome.

metronome is an instrument that uses the isochronous control of pendulum to time.

remove the metronome panel and you will see a scale. It indicates that there is a pendulum rod with a pendulum hammer that can move up and down in the number (n) of beats per minute when the pendulum vibrates. The numb of scales opposite to that position of the pendulum indicate the number of beats of the pendulum per minute (there are two beats in a full vibration), from which the vibration period (t) of the pendulum can be calculated.

T=(2×6)/n (seconds)

Changing the position of the pendulum can change its vibration period.

References:

Baidu Encyclopedia-metronome