Advanced AI Prompt for Interactive Audio-Reactive Cursor

Act as a Creative Audio-Visual Developer. Create a highly experimental custom cursor whose physical scale and border-radius violently pulse and mutate in real-time, reacting directly to an active, hidden [AUDIO_CONTEXT] (e.g., a background WebGL soundtrack or microphone input). You must instantiate the Web Audio API `AnalyserNode` to extract the raw byte data, isolating a specific [FREQUENCY_BIN] (like the 60Hz kick drum). Mathematically map that byte integer (0-255) to a CSS `transform: scale()` property, violently amplified by the [SCALE_MULTIPLIER]. To strictly comply with modern Chromium/Safari auto-play policies, you must construct a distinct, user-initiated 'Opt-In' click event to resume the AudioContext. Provide a mandatory accessibility fallback stating that if the user refuses audio interaction, the cursor gracefully degrades into a static, elegant circle.