Music Expert — AI Evaluation & Annotation (Generative Music)

Mercor is hiring music evaluators and annotators for a frontier generative-music AI lab — from sharp everyday listeners to professional musicians and audio specialists.

Depending on your background, you'll work on one of these:

• Music evaluation — all levels welcome (including non-musicians with a great ear): given two AI-generated songs for the same prompt, judge which is stronger on specific questions (overall quality, instruction-following, musical composition, production/artifacts, vocals & lyric delivery, consistency start-to-finish) and explain each choice in a few sentences.

• Music captioning — professional musicians: write detailed, technical descriptions of a track (key, tempo, time signature, instrumentation, structure, harmony, production).

• Lyric timing — native speakers with subtitle/karaoke/transcription experience: word-by-word timing of lyrics to audio.

You're a fit if you have a strong, discerning ear and can clearly justify your judgments. Formal music training, production/engineering experience, or multilingual fluency are pluses that route you to specific work.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.