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大老李聊数学(全集)

S2. 番外篇:卡农与莫比乌斯带

25 Jun 2018

Description

卡农并不是特定的某个曲子,而是一种作曲的格式,就像唐诗有绝句,有律诗一样,卡农是一种格式。其基本结构而言就是两段相似甚至完全一样的旋律,在时间上有一点错位,产生一种纠缠回旋感觉的旋律。巴赫莫比乌斯带卡农,原五线谱有“滑移反射”效果:做成“莫比乌斯带”:巴赫“永不终止的卡农”的音高走向图,六轮叠加,每一轮升高一个全音:订阅“大老李聊数学”公众号:dalaoli_shuxue

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