What it is
Authoring tool for the "soft girl era" iOS rhythm game (11 tracks, distinct mechanics per track). Lets a human producer place beat events against an audio track and tune difficulty curves.
Pairs with Predictive Beat Mapper as the human-side counterpart in a co-authoring loop.
Where it sits
BEAT MAP EDITOR 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.