Light at the end of the year
When we think of light we understand it as a retinal phenomenon. But music has used it as a metaphor for centuries, most notably during the Impressionism period in the late 19th century, with works primarily by Debussy and Ravel.
In the 20th Century, artists such as James Turrell and Brian Eno extended the phenomenological (or ambient) aspects of light. Eno was interested in light even before he became involved with sound and Turrell, while not an audio artist, recontextualized light as being an ambient phenomenon worthy of deeper meaning and attention.
There is a natural linearity of moving from visual phenomenon to sound; They are joined at the hip in many ways. People that have synesthesia understand this with an intensity that others may not; but most understand that light and sound are comprised of various frequencies, which manifest in spectra of colors, luminosity, and pitch.
Algorithms can be programmed to correlate light and sound with the most simple and prosaic example being the laser light displays, sometimes digitally synchronized with sound—sometimes in a more analog fashion using pressure-sensitive piezo microphones, as used in a laser light show accompanying Stravinsky’s Rite of Spring.
The association of color frequency and sound frequencies is highly subjective and no two people will be in accordance. But that is not what matters: In terms of how sunlight waxes and wanes at various points on the globe is an impelling force to contemplate the power of sunlight and celestial awareness and extend it to how we experience music and sound. We don’t automatically perceive the connection between light and sound but it has always existed, and it is the interdisciplinary artist (or “sciartist”) that can bring it to light.
Takeaways:
There is a nice rejuvenating warmth to reflected light, or things that shine on or into other objects. The moon and earth both shine on each other.
Gray doesn't exist in the light spectrum, yet exists in the luminance spectrum. There is no "gray" light. Gray is an abstraction fabricated by humans, and perhaps other organisms for specific functions.
There's an entire light year of light that will have traveled since last year, both towards us and away from us, and in every direction.
Metaphors are lights that cast shadows that either match the outline of an object or are completely different. In the latter there is no 'illumination.' But perhaps if you reverse the metaphor (where the shadow and objects change places), it may reveal something interesting.
Light never ages; it just travels farther.
Poetry is more like the moon than the sun. It reflects light rather than shines directly.
The image above is the reflected light from heliostats. Watch the video here. They should install these everywhere where sunlight is obstructed.