Sound is the most accessible window onto universal vibration

Evidence

This universality is another reason for studying sound, the most accessible of all vibrational and wavelike manifestations, for in doing so you are studying the clockwork of the universe. Perhaps this is simply a less poetic way of expressing the idea of music of the spheres, which so captivated Pythagoras and those after him. — Eric J. Heller, Why You Hear What You Hear- An…, 23

Categorization

• XREF: Echoes the Pythagoras/music-of-the-spheres theme that already runs through the silence and soundscape books in this library, grounding abstract cosmology in the physically hearable.