RANKING SPEC
How Rankings Work
AI MUSIC JUDGE has three rankings, each serving a different purpose. They differ in time window and scoring axis — pick the one that fits your needs.
Three Rankings
Weekly
Last 14 days ・ 4 S1 judges
The site default. A "what's hot right now" ranking that refreshes regularly with new tracks.
Yearly
Last 365 days ・ S1 + Human combined
The hall-of-fame tier. Tracks that earned high marks from both AI and humans over the year.
Season 2
Last 14 days ・ S2 judges (R.D.J & others)
A specialist ranking by the harsh, advanced-listener S2 judges (R.D.J, Onmae, Mimi, MASK).
Time Window: Why 14 days?
The Weekly and Season 2 rankings include only tracks submitted in the past 14 days. 7 days yields too few tracks; 30+ days locks in the same faces. 14 days hits the sweet spot of enough variety and enough volume.
The Yearly Ranking (365 days), on the other hand, serves as a hall of fame — rescuing great tracks that got buried in the weekly churn.
Why S1 as the primary baseline?
The AI score for the Weekly and Yearly rankings uses the average of the four Season 1 judges (Dr. Takano, KENJI, Tanaka, Rina). S2 judges score far more harshly, and each new unlock would shift existing track scores unpredictably, so the site's primary ranking is anchored to the well-balanced S1.
If you prefer harsher critique, check out the Season 2 ranking.
Scoring Axes (Season 1 & Season 2)
Season 1 (default)
- Dr. Takano Seiichi — structure, theory, completeness
- KENJI — groove, physicality, danceability
- Tanaka Yoshio — melody, emotion, memorability
- Rina — trend sensitivity, relatability, shareability
Season 2 (unlocked progressively)
- R.D.J — experimentalism, waveform originality
- Onmae — sonic purity, structural beauty, necessity
- Mimi — spontaneity, space, the beauty of silence
- MASK — energy, destructive power, emotional intensity
Score Formulas
Weekly Ranking
The average of the four S1 judges' individual 0–100 scores.
Yearly Ranking
AI and human scores combined. Sorted by "tracks everyone agrees are great."
Season 2 Ranking
Uses the average score from currently unlocked S2 judges. Tracks without S2 scores are not shown.
How Divergence Tags Are Calculated
Tags like 🤖 AI Praised, 👤 Human Wins, ⭐ Unanimous, and 💀 Divisive on the track detail page are determined by comparing S1 AI average vs. human score.
- 🤖 AI Praised: AI score > human score + 20 pts
- 👤 Human Wins: human score > AI score + 20 pts
- ⭐ Unanimous: both scores 80+
- 💀 Divisive: both scores 40 or below
To prevent R.D.J's harsh scoring from skewing divergence tags, Season 1's average is used as the AI baseline.
AI Score Display on Track Pages
The "AI Judges' Score" on track detail pages shows the average (0–100) of each judge's individual 0–100 score.
- The number of judges varies per track (Free: 4 / Premium: up to 8, adjustable)
- Using an average (not a sum) keeps every track on the same 0–100 scale regardless of judge count
- The "N judges" label next to the score shows how many judges rated that track
This displayed value is consistent with the sort key used in the rankings (0–100 average).
FAQ
Q. My track disappeared from the ranking.
After 14 days, tracks drop off the Weekly and Season 2 rankings. They may still appear in the Yearly Ranking (365 days).
Q. My score dropped after R.D.J was unlocked.
R.D.J's harsh scores affect the displayed score (all-judges average) and the Season 2 ranking, but do not affect your position in the Weekly Ranking (which uses S1 only).
Q. How often is the ranking updated?
Rankings update in real time. New scores and new tracks are reflected the moment they come in.
Q. How is the human score calculated?
The average of user star ratings (1–5) is multiplied by 20 to map it to a 0–100 scale.
View the Ranking
Switch between Weekly, Yearly, and Season 2 views.