節拍器

https://makecode.microbit.org/_5oA6YfUdufsf

let volumn = 0

let beat = 0

let number = 0

basic.forever(function () {

number += 1

beat = number % 4

if (beat != 0) {

volumn = 100

} else {

volumn = 250

}

music.setVolume(volumn)

music.playTone(150, 50)

music.rest(200)

})