和弦与主音有什么大的区别

2025-04-04 07:17:48
推荐回答(2个)
回答1:

你说的主音叫旋律.
弹旋律是为了让你认识作品,找音高用的.
而你所说的和弦也就是伴奏,才是吉他手应该学习的东西.
伴奏可以让你很快的在学习作品的同时,加快基本功的训练步伐,对于日后的民谣伴奏是必不可少的.也是以后学习电吉他的必经之路.
切记学习过程中课本教材中标注的和弦属性,了解它的性能,音响效果.对于以后伴奏和即兴都是大有用处的.
学习和弦是学习吉他的基础,虽然枯燥又抽象.
切忌心浮气燥,电琴不要着急买,等练好了基本功再说吧!
既然喜欢,就要对得起它,别荒废了...

回答2:

一、简谱知识 和弦知识

1、自然音阶:即所含七个音是没有升降的自然音。

简谱 1 2 3 4 5 6 7 1

音名 C D E F G A B C

唱名 Do Re Mi Fa Sol La Ti Do

在这个音阶中 3——4 相隔半音,7——1 也相隔半音,其余相邻两音都相差全音,这也是吉它乐理中一个极重要的公式。在吉它指板上,半音是相邻两格之间的距离。

2、变化音阶:变化音阶是指包含升、降记号的音阶,它是在自然音阶的每个全音距之间加一个升、降半音。#1 = b2 , #2 = b3 这是同音,但不同名称。

二、和弦知识

(一)和弦

和弦通常指同时响出三个或三个以上不同高度的音,音名的排列有C、D、E、F、G、A 和 B七个音其中任何一个音都可以作主音(即根音)加上其上三度音和上五度音,便构成最基本的三和弦,分述如下:

C :1 3 5

D :2 4 6

E :3 5 7

F :4 6 1

G :5 7 2

A :6 1 3

B :7 2 4

以上七和弦均由相隔三度的三个音组成,所以称为三度和弦,这七个三和弦便是一切和弦的根基。

(二)三和弦

上述七个基础的三和弦,从音程上来说,可分出三种不同性质的三和弦

1、大三和弦

主音至三度音共有四个半音;主音至五度音共有七个半音。上面七个三和弦中的 C、F、G 便是。

2、小三和弦

主音至三度音共有三个半音;主音至五度音共有七个半音。上面七个三和弦中的 D、E、A 便是。为了区别,写成 Dm、Em、Am 。

3、减三和弦

主音至三度音共有四个半音;主音至三度音共有七个半音。上面七个三和弦中的 B 便是。写成 B- 。

(四)七和弦

由于上面的七个三和弦不够用,因此,在各三和弦的上方,加上一个三度音,便够成下列七个七和弦:

C7 :1 3 5 7

Dm7 :2 4 6 1

Em7 :3 5 7 2

F7 :4 6 1 3

G7 :5 7 2 4

Am7 :6 1 3 5

B-7 :7 2 4 6

七个七和弦中,在音名排列第五个音 G、即属音作主音所成的七和弦,是上述七和弦中最常用的一个,既属七和弦 G7 。

因 G7 的四个组成音:“5 7 2 4” 已包含了 G 和弦的 “5 7 2”。因此,在和声手法上,大调歌曲用 C、F、G7 这三个和弦,便可以伴奏一般简单的大调歌曲。

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