I'm a product design student. I'm not familiar with the terminal or writing code. Please build this for me with HTML, CSS, JavaScript and native Web Audio. Make a simple, usable browser page, with no external libraries or internet services. Sound should start only after I click. Use comfortable initial levels. I need to play with the result, not read code. Make a lo-fi comparison using a generated chord and optional imported audio. Compare saturation with reduced bit depth and reduced sample resolution. These should be separate effects with separate bypass switches. Give me useful controls and keep levels comfortable. Let me compare clean, subtly worn and clearly degraded versions. Explain in a short line what each treatment changes. The goal is to hear different kinds of texture and decide what could suit a soundscape.