What it is
Mastering pipeline tuned to the "soft girl era" sonic palette: warm low end, glassy highs, controlled dynamics, intimate stereo image. Functions as an opinionated finishing stage for the iOS rhythm game's 11-track corpus and adjacent C-Cell work.
A genre-bound mastering chain encoded as repeatable instrument.
Where it sits
SOFT GIRL ERA MASTERING is catalogued under Audio & Music in the instrument registry. Instruments in this group share a concern and are frequently composed rather than used alone; the related entries below are the nearest ones.
This is a registry entry: a real instrument, documented here, without a public endpoint a stranger can open. Pages carrying source excerpts and measured results are marked as such in the catalog. If you want detail on this one specifically, ask about it directly.