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第112章 用电子琴调准音高(2 / 2)

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马旭静说:“这当然是用来帮你训练音准啦!你的音调都不太准确,咱们用这个来帮你训练音准和节奏,会很有帮助的哦。而且呀,如果有兴致了,你还可以学学弹琴什么的呢。”

李晓阳虽然不太明白,但还是把那纸箱子搬上了楼。

进了宿舍,他打开纸箱子,掏出里面的电子琴,竟然还有架子呢!他们俩一起把架子安装好,并将电子琴固定在了架子上。

李晓阳看着电子琴上那密密麻麻的白色和黑色的琴键,一头雾水,然后指着上面的字念道:“雅马哈电钢琴 KBP2100。这是什么意思呀?”

马旭静白了李晓阳一眼,说:“你这个大笨蛋,这是电子琴的品牌和型号呀。”

李晓阳又问:“你看上面还有好多字呢,居然写着二胡、琵琶、笛子、古筝、唢呐,这是啥意思呀?这不是电子琴吗?”

马旭静好笑地看着李晓阳说:“你这个傻孩子,电子琴和钢琴可不一样哦,它的音色是可以调整的呀。也就是说,这台电子琴可以模拟二胡、琵琶、笛子、古筝等各种各样的音色呢。”

李晓阳充满好奇地问道:“哇,这么多键怎么用啊?”

马旭静耐心地解释道:“你看到那些白键和黑键了吗?它们代表着不同的音高哦。你看,白键就是基本音符,比如 do、re、mi、fa、sol、la、si 等等。而黑键呢,则是变化音,是对白键音的升高或降低半音的表示呢。”

马旭静一边说着,一边指着键盘继续说道:“你再仔细看看这个键盘的键有什么规律呢?”

李晓阳对着键盘认真地看了一会儿,惊喜地说道:“诶,这键盘上的黑键真的有规律诶!你看,两个、三个、两个、三个,好像是一组一组的呢。”

马旭静满意地赞许道:“算你聪明!没错,你这次说对了。你看,这些黑键是五个一组的,两个和三个加起来正好是五个黑键,这就是一组。而这五个黑键与包围它们的七个白键组成了一个八度,也就是 do、re、mi、fa、sol、la、si 以及它的五个半音。”

“哦!”李晓阳听后恍然大悟,“原来是这样啊,它们是一个周期一个周期的。”

马旭静有些无奈地白了他一眼,说道:“什么一个周期一个周期的,这叫一个八度!”

说着,马旭静打开了电子琴,按到了 do 键上,并示意李晓阳随着这个音高一块儿用嘴唱“do~~~~”。

李晓阳也跟着唱了起来,整个房间里充满了他们对音乐探索的热情和欢乐。

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