This is a response to the August Challenge by @OmriCohen-Music with the theme “Universe”. Included in the challenge is a poem he asked Chat GPT to create.

In the dark velvet of the night, we trace,
The whispered secrets of a star’s embrace.
Through cosmic dances and the silent spin,
We seek the light, where mysteries begin.

I did some calculation and found that, rounded to the nearest note, the Earth’s orbit has a frequency of C#, several octaves below audible frequencies, of course. I did this for all of the planets and for Pluto, and got the following values:
Mercury – D
Venus – A
Earth – C#
Mars – D
Jupiter – F#
Saturn – D
Uranus – G#
Neptune – A
Pluto – C#
These are not precise, but closest 12-TET values to the actual orbital frequencies. It would be an interesting challenge to redo this in 31-TET.

The base tempo is 42 bpm, of course, and I used 42 or a power of two or power of ten factor thereof wherever I could, including all of the modulation settings.