The Unseen Orchestra

Prompt

Develop a page that is entirely black. The HTML should contain a grid of 100 invisible, focusable <button> elements. The CSS should give them a nearly imperceptible focus outline in a color just slightly off-black. The JS must assign each button a unique, very low-frequency sine wave oscillator from the Web Audio API. The user cannot see the grid; they must tab through the buttons. The experience is purely auditory: a drone piece generated by the user's navigation through an invisible, tactile structure. The focus order is the score.

A system prompt was added to support web rendering