1. God obviously is not only nature, because, music is not nature.
1.1. most [perhaps all] of the formal musical components exist in nature;
1.2. the mechanical designs of musical instruments imitate nature;
1.3. the musical intervals, pitch classes formally exist in nature, like the ratio design of ancient architecture, which literally imitates nature.
1.4. So music theories formally exist in nature.
2. the sum of all "good" music pieces equal to the spirit (not really, I doubt it, compared with this statement, I doubt more about this: some single music pieces equal to the wholly of the God. So I put this more forward.) Is the sum of all spirits equal to the soul of the God?
3. The nature is the body of the God (Schelling's
Ages of the World), and the music is the spirits of the God.
useful references:
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https://txtdot.deep-swarm.xyz/get?url=https%3A%2F%2Frsarchive.org%2FLectures%2FGA283%2FEnglish%2FAP1983%2F19061203p02.html&engine=&format=html-
Holy Ghost, Tim Hodgkinson