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 simple ring modulation app. Generate one tone and multiply it by another oscillating signal. Give me both frequencies, level, play/stop and bypass. Show a simple spectrum. Include a 440 Hz tone multiplied by an 80 Hz sine, so I can hear and see the new 360 Hz and 520 Hz components. Also give me a quieter, more musical setting I could use as part of a soundscape. Keep its level comfortable.