in Thoreau’s Journal:

Waited at Lincoln depot an hour and a half. Heard the telegraph harp. I perceived distinctly that man melts at the sound of music, just like a rock exposed to a furnace heat. They need not have fabled that Orpheus moved the rocks and trees, for there is nothing more insensible than man; he sets the fashion to the rocks, and it is as surprising to see him melted, as when children see the lead begin to flow in a crucible.  I observe that it is when I have been intently, and it may be laboriously, at work, and am somewhat listless or abandoned after it, reposing, that the muse visits me, and I see or hear beauty. It is from out the shadow of my toil that I look into the light.

The music of the spheres is but another name for the Vulcanic force. May not such a record as this be kept on one page of the Book of Life: “A man was melted to-day.”