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by chipotle_coyote 1851 days ago
Harman Audio created a free "How to Listen" application years ago for both Mac and Windows, which "consists of a number of training exercises where different kinds of timbral, spatial and dynamic distortions commonly found within the recording and audio chains are simulated and added to music." It isn't about MP3 compression specifically, IIRC, but it's a good critical listening course.

But: while it's still available, it's about ten years old, and I have no idea if it still runs on modern hardware.

http://harmanhowtolisten.blogspot.com