Switch the rubric. Watch the file re-score.
A scored assessment against an artist, songwriter or producer rubric — with the evidence behind each attribute and a figure saying how sure it is.

Star power, 84 at 61% — Present proof: 13K monthly listeners, one guest feature carrying most of the plays. Star-shape inference: the origin story is legible and the audience talks like it is already attached.
The research · five lanes, one file
It reads before it scores.
Five lanes work at once — the critics, the room, the credits, the positioning, and the record itself. Each files what it found and how sure it is, and the judge is only shown what actually came back.
A lane that comes back thin lowers the confidence, never the score. The judge is told what was found and what was not, and says so in the file.
The read
Evidence, not vibes.
Anyone can generate a confident paragraph about an artist. These are the things that make a score worth acting on.
The same person is a different asset in three different businesses. She rates as an artist, writes better than she performs on paper, and the producer rubric is where the evidence runs out.
Three businesses, three rubrics
An artist, a songwriter and a producer are not the same bet and are not scored as one. The same person can rate high as a writer and thin as a producer — and the file will say so.
A confidence figure on every attribute
Star power is scored on shape separately from present proof, so a four-thousand-listener artist can rate highly and the file still tells you how much of that is inference.
Ask any number why
Every score carries the justification behind it. A briefing you cannot interrogate is an opinion with a font.
Take the number into a room and somebody will ask you why.
The answer is on the file, in a sentence you can push back on.
The second read
Run it again in six weeks.
One score is an opinion with a date on it. Two are a direction — which attribute moved, by how much, and the evidence that moved it. That is how you tell somebody who is good from somebody who is getting better while nobody is looking.
Score one artist.
Pick someone you already have an opinion about, and see whether the file agrees.