The 50 is the canon — Nightvision's taste rendered as a list. Nothing reaches THE INDEX without rhyming with it. When a name rotates off, it lives on as alumni: the receipt of who held the gate.
The Key
HOW TO READ A SCORE
MUSA SCORE (1–10) is the taste read — where a name sits against the canon. HEAT (0–100) is how loud the room is right now. The gap between the two is the whole point, and every card carries a flag naming which way that gap runs:
FIND the score is ahead of the room.
ROOM'S RIGHT the room is loud, and the room is correct.
ROOM'S AHEAD the room's ahead of what's landed.
A score under 5 is NOISE outright. BENCHMARK names the nearest neighbour in the 50, so no score floats.
THE MUSA FAMILY · HEIRWAVE