古箏21根弦對應什么音

d調：

第一弦（最粗弦）：下方(fang)兩點do

第二(er)弦：下方(fang)兩點re

第三弦(xian)：下方兩點mi

第四弦：下方(fang)兩點sol

第五(wu)線(xian)：下(xia)方兩點la

第六弦：下方(fang)一(yi)點(dian)do

第(di)七弦：下方一(yi)點(dian)re

第八弦：下方一(yi)點mi

第九弦：下(xia)方一點(dian)sol

第十弦：下方一點la

第(di)十一(yi)弦：上下方都(dou)不帶點，即“do”

第十二弦：上(shang)下方都不帶點，即“re”

第十三(san)弦：上(shang)下方都不帶點(dian)，即“mi”

第十(shi)四弦：上下方都不帶點，即“sol”

第十五(wu)弦(xian)：上(shang)下(xia)方(fang)都(dou)不帶點，即“la”

第十(shi)六弦：上方(fang)一點do

第十七弦(xian)：上(shang)方一(yi)點re

第十(shi)八(ba)弦：上(shang)方一點mi

第十九弦：上(shang)方(fang)一點sol

第二十弦：上方一點(dian)la

第二十一弦(最(zui)細弦)：上方兩點do

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古箏琴弦A型和B型的區別

1、 手感不同

a型古箏弦：較(jiao)細較(jiao)軟(ruan)，手感(gan)較(jiao)松(song)，余(yu)音較(jiao)長。

b型(xing)古箏弦：較(jiao)粗較(jiao)硬，手(shou)感(gan)較(jiao)緊，其韻(yun)味更悠長(chang)。

2、調不同

a型(xing)古箏(zheng)弦：從被低音3一直到上面三個點的(de)3。

b型(xing)古箏(zheng)弦(xian)：從下面是三個點的3一直到被高音3。

古箏琴弦的知識拓展

1、琴弦的種類

目前生產的古箏琴弦(xian)(xian)(xian)(xian)(xian)(xian)有四種：鋼絲尼龍纏線A型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)（五聲(sheng)）、B型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)（五聲(sheng)）、C型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)（七聲(sheng)）和(he)D型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)（五聲(sheng)、七聲(sheng)）。前(qian)兩種是常(chang)規21弦(xian)(xian)(xian)(xian)(xian)(xian)古箏(zheng)的(de)配套用(yong)弦(xian)(xian)(xian)(xian)(xian)(xian)。A型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)和(he)B型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)的(de)結構(gou)和(he)工藝類似(si)，但規格略有區別(bie)。A型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)手感較(jiao)松，余(yu)音較(jiao)長；B型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)手感較(jiao)緊，更適(shi)合大力(li)度的(de)作品使用(yong)。目前(qian)，689、696、699配的(de)是A型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)，694、695、698配的(de)是B型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)。C型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)為七聲(sheng)音階的(de)弦(xian)(xian)(xian)(xian)(xian)(xian)。D型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)專為多聲(sheng)弦(xian)(xian)(xian)(xian)(xian)(xian)制(zhi)組合箏(zheng)所配，但同時可用(yong)于傳統S形21弦(xian)(xian)(xian)(xian)(xian)(xian)古箏(zheng)上，音色比A、B型(xing)(xing)(xing)(xing)弦(xian)(xian)(xian)(xian)(xian)(xian)更為醇厚、明亮。

2、琴弦的材質

古箏(zheng)常規的(de)(de)音(yin)(yin)位排列(lie)時五聲音(yin)(yin)階，許多半音(yin)(yin)和(he)(he)滑(hua)音(yin)(yin)，以及大二度(du)(du)、小三(san)度(du)(du)的(de)(de)按(an)弦和(he)(he)大幅(fu)度(du)(du)的(de)(de)顫音(yin)(yin)，都(dou)需左(zuo)右深度(du)(du)按(an)弦。這就要求鋼絲材料的(de)(de)拉伸性(xing)能(neng)和(he)(he)柔韌性(xing)等指標均能(neng)滿足演(yan)奏的(de)(de)需要。高音(yin)(yin)區0.081芯(xin)弦，抗拉強度(du)(du)為(wei)3050~3100N/毫(hao)米2；中(zhong)音(yin)(yin)區0.376芯(xin)弦抗拉強度(du)(du)為(wei)2800~2850N/毫(hao)米 2 ；低音(yin)(yin)區0.508芯(xin)弦抗拉強度(du)(du)為(wei)2700~2750N/毫(hao)米2。如果達不到上(shang)述指標，對(dui)音(yin)(yin)準的(de)(de) 穩定性(xing)和(he)(he)音(yin)(yin)質等性(xing)能(neng)會(hui)產生不良影響。

3、琴弦的顏色

現在(zai)常用的(de)鋼絲(si)尼龍纏(chan)弦(xian)(xian)(xian)(xian)(xian)外表(biao)是(shi)(shi)白色(se)的(de)。A型(xing)、B型(xing)弦(xian)(xian)(xian)(xian)(xian)的(de)21根(gen)弦(xian)(xian)(xian)(xian)(xian)中，有四根(gen)弦(xian)(xian)(xian)(xian)(xian)是(shi)(shi)綠色(se)，分(fen)別是(shi)(shi)3弦(xian)(xian)(xian)(xian)(xian)、8弦(xian)(xian)(xian)(xian)(xian)、13弦(xian)(xian)(xian)(xian)(xian)、18弦(xian)(xian)(xian)(xian)(xian)。設(she)計(ji)這種(zhong)顏色(se)標(biao)識是(shi)(shi)為(wei)了讓演奏者更容易分(fen)清音區。距離最近的(de)兩根(gen)綠色(se)琴弦(xian)(xian)(xian)(xian)(xian)之間在(zai)音程關系上為(wei)八度，第8弦(xian)(xian)(xian)(xian)(xian)的(de)音高為(wei)a1。 C型(xing)弦(xian)(xian)(xian)(xian)(xian)（七(qi)(qi)聲(sheng)）中有四根(gen)弦(xian)(xian)(xian)(xian)(xian)是(shi)(shi)綠色(se)的(de)，分(fen)別是(shi)(shi)2弦(xian)(xian)(xian)(xian)(xian)、9弦(xian)(xian)(xian)(xian)(xian)、16弦(xian)(xian)(xian)(xian)(xian)、21弦(xian)(xian)(xian)(xian)(xian)；有三根(gen)是(shi)(shi)紅(hong)色(se)的(de)，分(fen)別是(shi)(shi)6弦(xian)(xian)(xian)(xian)(xian)、13弦(xian)(xian)(xian)(xian)(xian)、20弦(xian)(xian)(xian)(xian)(xian)。D型(xing)弦(xian)(xian)(xian)(xian)(xian)（五聲(sheng)）同A型(xing)（五聲(sheng)）B型(xing)弦(xian)(xian)(xian)(xian)(xian)（五聲(sheng)），D型(xing)弦(xian)(xian)(xian)(xian)(xian)（七(qi)(qi)聲(sheng)）同C型(xing)弦(xian)(xian)(xian)(xian)(xian)（七(qi)(qi)聲(sheng)）。

4、琴弦的弦號

古(gu)箏琴(qin)弦(xian)(xian)的(de)弦(xian)(xian)號表述如下(xia)：古(gu)箏最(zui)(zui)細、最(zui)(zui)高音的(de)弦(xian)(xian)，琴(qin)弦(xian)(xian)號碼最(zui)(zui)小，靠近演奏者的(de)琴(qin)弦(xian)(xian)號碼為(wei)1號弦(xian)(xian)，依次向前至弦(xian)(xian)號最(zui)(zui)大、最(zui)(zui)粗的(de)弦(xian)(xian)是21弦(xian)(xian)。