18 Counting the Beat

Counting the Beat written by John Lockyer

约翰·洛克耶写的《Counting the Beat

mathematics and music Many of us like music and many of us like mathematics. Some of us like both music and mathematics. That may be because there is a lot of mathematics in music. A pattern is the way we do something. In mathematics we can count in fives. That is a pattern. In music we can count the beats. That is a pattern, too.

我们中的许多人喜欢音乐，我们中的许多人喜欢数学。 我们有些人既喜欢音乐又喜欢数学。 这可能是因为音乐中有很多数学。 模式是我们做事的方式。 在数学中我们可以用五来数数。 这是一种模式。在音乐中我们可以数节拍。 这也是一种模式。

beats Put your hand on your chest. Can you feel your heart beating? Can you count each beat? Your heart is making a pattern just like a drumbeat. When you tap your foot or clap your hands to music, you are keeping in time with the beat. Slow music has less beats and fast music has more beats. When music starts, people also like to dance. They hear a beat in the music and move in time with it.

把你的手放在胸前。 你能感觉到你的心跳吗? 你能数一下每一拍吗?你的心在做一个图案，就像鼓点一样。 当你随着音乐轻拍你的脚或拍手时，你是在与节拍保持同步。 慢音乐的节拍少，快音乐的节拍多。 当音乐响起时，人们也喜欢跳舞。 他们听到音乐中的节拍，并随着节拍而动。

conductor A conductor moves a baton to keep musicians in time with the beat. If the musicians don't keep in time together, the music sounds terrible. The conductor's baton makes it easy for everyone to count the beat. drummer Because there is no conductor in a rock band, the drummer must keep the time. A drummer is like a conductor that you can hear. Drummers make it easy for the band to count the beat.

指挥家移动指挥棒，使乐手与节拍合拍。 如果乐师们不合拍，音乐听起来就很糟糕。 指挥的指挥棒使每个人都很容易地数节拍。 鼓手因为摇滚乐队里没有指挥，鼓手必须保持节拍。 鼓手就像你能听到的指挥。 鼓手使乐队很容易计算节拍。

choir A conductor can count the beat for a choir, too. Some singers in a choir sing high and some sing low. Some sing quietly and others sing loudly. The singers can sing all of a song or just a part. A conductor brings in each singing part at the right time. When all the parts come together the song sounds wonderful.

合唱团指挥也可以为合唱团打拍子。 唱诗班里有的唱高，有的唱低。 有些人安静地唱，有些人大声地唱。 歌手可以唱整首歌，也可以只唱一部分。 指挥在适当的时候引入每个歌唱部分。 当所有的部分合在一起时，这首歌听起来很棒。

metronome Sometimes a musician has to play alone. A metronome can help the musician keep in time. As the metronome's arm moves from side to side it makes a ticking sound. This helps the musician count the beat. The beat can be changed for fast music and slow music.

有时音乐家不得不独自演奏。 节拍器可以帮助音乐家保持节拍。 当节拍器的手臂左右移动时，会发出滴答的声音。 这有助于音乐家计算节拍。 快音乐和慢音乐的节拍可以改变。