Has anyone taught a practical lesson that compares lossless audio with compressed versions of the same source? I plan to use a short generated instrumental and keep its original export available to everyone. I would start with listening notes so that the image does not dictate their initial observations. I found mp3 to spectrogram as a possible reference while planning the visual part. The next step would compare export settings while keeping the passage and playback level consistent. The lesson needs to distinguish an observation in the image from a claim about its cause. A worksheet could separate audible observations, export settings, and questions that remain unresolved. There would be no requirement to repair the clip or produce a supposedly perfect version. Students would record the software used for each export so that their comparison can be repeated later. How would you keep this lesson manageable for students learning audio formats for the first time?