钢琴示范、演奏:《钢琴基础教程》第一册(下)No.4。音的强弱是由于振幅(音的振动范围的幅度)的大小而决定的。振幅大,音则强;振幅小,音则弱。音色则由于发音体的性质、形状及其泛音的多少等不同。 音的以上四种性质,在音乐表现中都是非常重要的,但音的高低和长短则具有更为重大的意义。试以《社会主义好》这首歌为例,不管你用人声来演唱或用乐器来演奏,用小声唱或是大声唱,虽然音的强弱及音色都有了变化,仍然很容易辨认出这支旋律。但是,假如将这首歌的音高或音值加以改变的话,则音乐形象就会立即受到严重的破坏。因此,不管创作也好,演奏演唱也好,对音高和音值应加以特别的注意。 由于音的振动状态的规则与不规则,音被分为乐音与噪音两类。音乐中所使用的主要是乐音,但噪音也是音乐表现中不可缺少的组成部分。#钢琴# #纯音乐# #乐器# |考虑买钢琴的朋友可以撩撩哈!新琴:翰森(HANSEN)钢琴、GER.APOLLO(阿波罗钢琴)。二手钢琴:施坦威、雅马哈(Yamaha)、卡哇伊(KAWAI)等原装进口,支持全国发货。有考虑的朋友可以约实地看琴、选琴,展厅、工厂在上海,不方便的朋友也可以线上联系!
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