(There's no video for breathing player/MAC yet. Please contribute to MR and add a video now!)
All it does is launch the screenshot above with 10 seconds of audio from "The Breathing Room" track from the album "Unlearn", then it stops and you quit the app. That's it.
Probably some sort of music demo back in 1994, not sure. It's from this album: https://open.spotify.com/album/5WUnSDVnaiwQMqo8E2X6KN
(1.49 MiB / 1.57 MB)
breathing player/MAC / BinHex'd, use Stuffit Expander
Mac OS 7.x - Mac OS 9.2.2
Emulating this? It could probably run under: Basilisk II