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音乐是通过声音来表达人的思想感情的一种艺术形态,具有区别于其他艺术门类的时间性与流动性的特点。在大自然中并存着两大类声音:一种是有规律、有固定音高的音,他听起来悦耳,这是好听的乐音。还有一种是无规律、无固定音高的音,他听起来刺耳,这种音叫噪音。把乐音和噪音按照高低、长短、快慢、强弱和调的关系有意识的构成不同节奏与律动特点的声乐、器乐作品,创作出不同风格的音乐
Music is an art form that expresses the thoughts and emotions of people through sound, which has the characteristics of timeliness and liquidity different from other art categories. There are two major types of sounds in nature: one is a regular, fixed-pitch sound, and he sounds sweet, which is good music. There is also a non-regular, no fixed pitch, he sounds jarring, this kind of noise is called. The music and noise in accordance with the level, length, speed, strength and tone of the relationship between the conscious composition of different rhythmic and rhythmic characteristics of vocal music, instrumental music, to create different styles of music