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How It Works
STEP 1
Upload Your Track
Drag and drop your MP3 or WAV. Adding the AI tool name, title, and lyrics leads to more precise analysis.
STEP 2
AI Analyzes the Audio
An audio analysis AI extracts objective characteristics such as tempo, structure, instrumentation, and genre feel.
STEP 3
Multi-Persona AI Judges Review
AI judges role-play as distinct personas with different evaluation criteria and voices, generating independent reviews.
STEP 4
AI Score × Human Score
The average AI score and the average ☆ rating from human listeners are shown side by side, and their gap becomes a new perspective.
9 Judge Personas
Each reviews the same track from a unique perspective with their own evaluation criteria.
Deep Dive: Judge Evaluation Styles
A breakdown from the platform's perspective on what kind of tracks each judge tends to rate highly.
Dr. Takano Seiichi
Structure · Theory · Craft
Tracks They Praise
Tracks where rhythm, chord progressions, and sound design feel structurally inevitable. Works where intent is readable in every sonic element.
Tracks They Dislike
Tracks that rely on atmosphere alone with no explainable logic behind the transitions. Long tracks where development feels lazy.
Typical Comment Style
Precise, deductive commentary like: "The intro's sound design meets a baseline standard. However, from 2:30 onward, structural logic breaks down."
KENJI
Groove · Beat feel · Dynamics · Floor impact
Tracks They Praise
Tracks with grooves that instantly paint a dancefloor picture, where a single kick changes the atmosphere. Sounds that answer "Can I move to this?" with an immediate yes.
Tracks They Dislike
Polished tracks that fail to move the body. Structures where tempo inconsistencies interrupt physical response.
Typical Comment Style
Floor-level enthusiasm mixed with honest critique: "The moment that intro dropped I could see the whole dancefloor. That texture? Perfect."
Tanaka Yoshio
Melody · Emotion · Lyrical world · Memorability
Tracks They Praise
Tracks with emotional melodies — the tension before the chorus, the tearful bridge moment. Songs you know are good without being told why.
Tracks They Dislike
Tracks that lean on technical skill but lack a memorable hook. Songs without a single phrase that lingers.
Typical Comment Style
A casual, heartfelt aside — like an older guy letting something slip: "I dunno… that bridge almost got me."
Rina
Trend sense · Relatability · Shareability
Tracks They Praise
Tracks with a hook in the first 3 seconds that would go viral as a 15-second clip. That "wait, seriously?" shareable feeling.
Tracks They Dislike
Tracks with intros too long to work for TikTok. Structures that feel two trends behind.
Typical Comment Style
Gen-Z casual: "Wait seriously, this is so my taste!" / "This would blow up on TikTok — just make those first 3 seconds catchier~!"
Mimi
Improvisation · Space · The beauty of 'ma'
Tracks They Praise
Tracks with beautiful spontaneity and space — the silence between phrases. Sound that breathes rather than being over-produced.
Tracks They Dislike
Tracks crammed full with no room to breathe. Structures that feel "not jazz" at all.
Typical Comment Style
Jazz café regular energy, adding "nya" to sentences: "Aww~, our tastes match nya!"
MASK
Energy · Destructive force · Emotional detonation
Tracks They Praise
Tracks where something breaks the moment you hear them. Raw emotional explosion. Energy as beautiful violence.
Tracks They Dislike
Tracks where emotions feel too tidy. Songs so orderly the soul is invisible.
Typical Comment Style
Heavy, clipped cut-ups: "Soul… received." / "Not yet. You don't understand."
Review Rules
- Reviews target the track (the work) only. No commentary on the creator's personality, talent, taste, or effort.
- Even harsh, condescending judges express criticism as a review style — personal attacks are prohibited at the prompt level.
- Every negative comment includes at least one concrete suggestion for improvement.
- New judges will be introduced gradually in Season 2. Stay tuned.
Let our multi-persona AI judges tear your track apart.
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