第607章 11,巴赫

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    戴成龙乐队,这天又有新曲要排练了,这回要排练的是一首古典乐曲,编号为bwv578,《g小调赋格》,作曲是巴赫,……
    叫说古典音乐的大家,叫我来排名的话,前三稳定不动的第一名是贝多芬,第二是莫扎特,第三就应该是巴赫了,……至少我个人是这么排名的,再往后面,海顿,柴可夫斯司,舒伯特,舒曼,约翰斯特劳斯父子,威尔第,肖邦,李斯特,等等等等……
    每个人的谱子发下来,风小叶拿到他的谱子,一看,上面写的“小号三部”……
    “别介呀……别老给我三声部的,好歹也给我一回一声部啊……”(叶)
    戴成龙笑笑,说,
    “你先看看谱子,完了再说!”(戴,笑,)
    ……
    叫说一般乐队里的声部的分配,主旋律都是由一声部来担当,二三声部什么的都是在给一声部伴奏用的,单独的拿出来听并不好听,……但是前提得是主调音乐才是这样,
    而在复调音乐中,各个声部的旋律都是平行演奏,相互独立的,互相之间没有主次之分,赋格曲就是复调音乐中的一种,
    赋格曲,具体来说,就是,当一个旋律被一声部演奏过时,后面接着二声部紧接着又重现一遍这个旋律,当然调性上可能稍加变化一下,然后紧接着后面三声部又是如此,……前后几个声部互相追逐,叠加,在观众听来,则是如波浪般一层层前进的立体声音效果,不同于一般的问答唱和式的复奏,气势恢宏,
    也因此,赋格曲必须由一支乐队,至少两个以上的声部的合作才能完成演奏,除了钢琴管风琴那些自带多声部的键盘乐器以外,不可能由一个人完成独奏,……早期的赋格曲多由大型管风琴来演奏,而巴赫正是赋格曲的集大成者,
    ……看了看总谱上的格局,就是各个声部一浪追着一浪的复奏,各显神通,风小叶说,好吧,那我就吹三声部好了……
    旁边儿郑铮笑笑,说,早知道该给你四声部的谱子……
    ……
    然后架起谱子,一开始试练……
    ……
    “哎等会!……啥是小调?”(叶)
    因为风小叶看到谱子上写的,是“g小调”,叫说g大调他倒是知道,这个g小调……
    关于调性方面的乐理,风小叶也学过一些,但是不论是首调还是固定调,都是练的大调,小调么,还真是头一次接触到……
    “这个……,一时给你讲不明白,你就记着,g小调对应的是降b大调,你就把它当降b调的谱子看就行了……”(戴)
    “噢,原来降b调就是g小调啊……,你早说呀,直接说降b调不就行了,”(叶)
    看看风小叶一副恍然大悟的样子,众人无奈的摇摇头……
    ……
    叫说降b大调对应g小调,但是不是说它俩就是一回事儿……
    大调么,不论是什么调性,dorefassi,一个八度之内,七个音都是按照“全全半全全全半”这个间隔的规律来排列的,平常众人听到的乐曲中,大多都是大调,
    而小调则很少被使用,它的音阶排列,是“全半全全半全全”,如果用大调的唱名来唱出小调的七个音阶,它其实sidorefaso,是这么排列的,
    所以可以说,大小调之间差了五个音,因此大小调之间还有一个对应关系,十二大调对应的十二小调,就是把大调的音名向后移动五个,就变成小调了……因此降b大调对应的就是g小调,同理c大调对应a小调,f大调对应d小调,等等等等……一般人不用掌握小调,只要把小调的五线谱当成对应的大调的五线谱来看就行了……
    ……
    “停!……阿叶,你,单独重来一遍,那个三连音那里,你,重来!”(戴)
    这是风小叶又冒泡了……,叫说乐队指挥的作用,就是在排练的时候,把演奏出错的地方找出来并加以纠正,……因为和他们这些专业科班出身的比起来,风小叶算是业余的,所以就属风小叶冒泡最多,
    风小叶又重新吹了一遍……
    “阿叶,你是不是,不懂三连音?”(戴)
    “三连音?……不就是‘当当当’的连吐三下么?”(叶)
    众人大眼瞪小眼,原来你是真的没学过……,风小心说,我又哪里搞错了?
    “咳咳,阿叶,这个,十六分音符的三连音,其实并不是三个十六分音符的长度,而是两个十六分音符的长度平均分成三等分,……同理八分音符的三连音也不是三个八分音符连在一起,而是两个八分音符的长度分成了三等分,你可以理解为一个前八后十六或者前十六后八的长度,但是三个音中间的那个音乐既不偏前也不偏后,就在正当中……”(戴)
    “龙哥,你这么讲我就明白了……我给吹长了是吧?短了吹,变成原来三分之二,”(
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