The image is linked to the sounds’ dynamics. I was exploring the connection between stillness and movement and the resulting tension.

“… and now and then
the fantastic shadows of birds in flight flitted across the long
tussore-silk curtains that were stretched in front of the huge
window, producing a kind of momentary Japanese effect,
and making him think of those pallid jade-faced painters
who, in an art that is necessarily immobile, seek to convey
the sense of swiftness and motion.”

The Picture of Dorian Gray, Oscar Wilde