How does art of the heian period demonstrate japan's desire to be less culturally dependent on china?

The Heian period of demonstrative of Japan's desire to be culturally independent of China because they started to incorporate their own cultural elements into the art, for example, they used kana script. They also produced yamato-e handscrolls and hand-copied collections of waka.

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.