BUR #41078 is pending approval.
mass update favgroup:43488 -> audio_recording
From this thread topic #31836 it seems people agree that audio recording and the content found under the typical recording tag are visually different enough to justify an additional tag.
Initially I considered separating audio and visual recordings into 2 new tags, but logically practically all video cameras and smartphones pick up audio anyway so I am not going with this approach. Instead I made a favgroup where audio recording is the *primary focus* of the illustration or at minimum the presence of audio recording is very obvious due to microphones / voice recorders / or boomsticks being present.
I do believe the audio recording tag should imply recording in general and falling under recording still makes sense overall, although I will add that as a separate BUR underneath for people to vote on.