A triangle of silver scales

I love the moon and sun. And the beauty Fitzgerald constructed this sentence played to the strings of my heart. The silver scales remind me of stars with music as their voices, and the "stiff, tinny drip" for the sound of banjoes adds a contrast to the serenity of the moon and stars.

"The moon had risen higher, and floating in the Sound was a triangle of silver scales, trembling a little to the stiff, tinny drip of the banjoes on the lawn (47)."

Here is my effort at duplicating:

The sun had risen before, suspended in the sky as a ball of golden fire, beaming down upon the quivering, cold drops of the icicles along the roof edge.