The instantaneous darkness produced vertigo.

You felt as if you were falling down an endless pit, and King and I clutched each other.

The mere fact that we were squatting on a hard floor did not help matters, for the floor seemed to be falling too and to be turning around bewilderingly, just as the whorls of colored light had done.

The gray-beard's voice boomed again; whereat there was more music, and light in tune to it.
This time, of all unexpected things, Beethoven's Overture to Leonore began to take visible form in the night, and I would rather be able to set down what we saw than write Homer's Iliad! It must be that we knew then all that Beethoven did.

It was not just wind music, or mere strings, but a whole, full-volumed orchestra--where or whence there was no guessing; the music came at you from everywhere at once, and with it light, interpreting the music.
To me that has always been the most wonderful overture in the world anyhow, for it seems to describe creation when the worlds took form in the void; but with that light, each tone and semi-tone and chord and harmony expressed in the absolutely pure color that belonged to it, it was utterly beyond the scope of words.