第七十三章 第一天学琴(2 / 2)

“外形近似于长箱形,两头稍凹陷,底板呈立体状,木制箱体的面板上绷有筝弦,每根弦下安顿筝码。”

“就是这个支撑琴弦的,这个就是弦码,每一根弦对应一个弦码,你仔细看一下,弦码上面都有响应的数学,那就是弦码所对应的一根弦。”

萧明月顺着余音所指的弦码看了一下,发现上面确实都标有1.2.3.4.5.6…

见到萧明月看清楚了以后,余音有继续介绍道:“这边是筝头,筝头有一个可以打开的盒子,这个盒子叫调音盒。”

“盒子里面一般放有一个扳手,这个扳手是用来调整琴弦的松紧度,进而达到调音的目的。”

“这这一排是弦轴,每个弦轴都连着一根琴弦,扳手就是扳动弦轴来调节琴弦松紧的。”

“调音盒旁边可以看见一排琴弦的出入口,然后就是岳山:分为前岳山,后岳山,分别镶嵌在琴面板的首部和尾部。”

说着,余音分别指给萧明月看,又接着道:“琴码也可以调音,只不过是微调,这台琴已经调好了,我们就先不动了,有空再教你怎么调音。”

“接着,我们再来说演奏的姿势:

(1)座位和琴的高矮比例要合适,第一个琴码的高度与自己的腰部平行,就是最靠近你的这个琴码。

(2)双腿自然弯曲,左脚稍前,右脚稍后放好。左脚可以踩在琴架上,右腿膝盖可以靠着左腿,看个人习惯。

(3)上身端正,后背挺直,坐凳子的前半部分,不要坐满整个凳子。第一个弦码对准衣服的中襟,身体离琴一拳的距离。

(4)两臂和双手松弛而自然抬起,精神饱满,面部表情放松。在演奏时既不要驼背也不要过分挺胸挺肚子,切忌摇头晃脑、脚打拍子等坏毛病。

(5)双手放松呈半握拳状弹琴。注意放松,手指之间要留有一定的缝隙。对,就是这样。”

“接着我们来分辨琴弦,琴弦有两种颜色:白色、绿色。共有四根绿色琴弦,有粗有细,由细到粗,分别代表高音5;中音5;低音5;倍低音5。”

“每一根绿色琴弦对应的音符都是5(suo)音,绿弦上面的是3(mi)音,下面的是6(la)音,依次就是35(绿弦)612。”

“古筝琴弦里面没有4和7音,这两个音需要用技巧来演奏出来,这就有些难了,以后讲到那里再说。”

“接着就说义甲,咱们都联系体术的,留着长指甲会容易发生断裂,而且身为医生,也是要求不留指甲的,因为里面会有很多细菌滋生,所以戴义甲就很有必要了。”

“这戴义甲,先戴大拇指,将义甲戴在指肚上,向指尖左上方斜出45度佩戴,食指、中指:将义甲戴在指肚上,顺指甲生长方向直戴。”

“根据自己手指的长度来调整义甲的位置,不要超出指尖太多,这样会造成琴弦无法稳定,发生滑动,弹奏出来了声音就不好了。”

说着将义甲递给萧明月,指点她戴:“不错,就是这样。”

“义甲戴好了,我们先简单来拨一下琴弦,先用大拇指。大拇指是用托法,就是将琴弦稍稍托起,然后放下,就这样。”

在余音大师一边讲解一边演示下,萧明月渐渐的跟着弹起来。

学习的时候时间总是过的很快,不知不觉间,一上午就么过去了,余音也讲解的口干舌燥了。

道:“行了,今天先讲到这里吧,这是最简单的熟悉琴弦的曲谱,你拿回去先联系,先将简单的弹奏好,等熟悉安魂曲以后,我再把安魂曲的曲谱给你。”

说着就递给一张写有曲谱的纸递给萧明月。

萧明月接过曲谱道:“是,我回去好好练习,争取早点拿到安魂曲的曲谱。”

余音笑了笑道:“行,我等着看你的表现。好了,你们走吧,我也要休息了。”

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