单子论是德国哲学家莱布尼兹于1714年提出的一套学说,此时也正值音乐中调性发展跃跃欲试,调性音乐的发展重心逐渐向德国转移之机。音乐与哲学在18世纪的德国遥相呼应绝非偶然,它表明了二者之间关系紧密、内在相通。文章深入地分析了莱布尼兹的单子论思想,试图从思维上证明哲学与音乐这两种表面上互不相关的事物之间的隐秘关系。 Monotone is a set of theories put forward by the German philosopher Leibniz in 1714, at which time the development of tonality in music is eager, and the focus of the development of tonality music gradually shifts to Germany. It is no coincidence that music and philosophy echoes in Germany in the 18th century, and it shows that the two are closely inter-connected and inter-connected. The article analyzes Leibniz’s theory of the theory of monism in an in-depth way and attempts to prove the covert relationship between philosophy and music, which are seemingly unrelated to each other.