Can anyone speak to the Physics of the Ainulindale?

[burrahobbit]

Not really

Yeah really.

The Ainur did there singing "beyond the confines of the World." Then when they "entered into [the material universe]... naught was yet made."

For the Great Music had been but the growth and flowering of thought in the Timeless Halls, and the Vision only a foreshadowing; but now they had entered in at the begining of time, and the Valar perceived that the World had been but foreshadowed and foresung, and they must achieve it.

To distil that, the Music was before the Universe existed.