All posts that include an audio download link. My site generator software looks for this tag as a clue to embed (or, I guess, enclose) audio files in the various RSS / atom feeds on this website.
I've gone back-and-forth with myself over what format and bitrate
to distribute; as of 2022/10/29 all audio downloads here are 192kbps
mp3 files. They are encoded with
lame --preset cbr 192
to be specific.