Music Audio Model Evaluation Specialist

About OpenTrain

OpenTrain is the #1 platform for starting and growing a career in AI training and data labeling. We help freelancers find specialized AI training work, build a reusable portfolio of proof-of-work, and manage opportunities in one place so you can grow sustainable freelance income in the AI space.

Why AI training matters (and why this work is great)

AI training is the human side of building intelligent systems: people prepare, review, and score examples so models learn what good outputs look like. Many projects are fully remote, flexible, and accessible to skilled contributors — a fast-growing way to apply music and audio expertise to cutting-edge technology.

• 100% remote and flexible — work fits around your schedule
• Accessible entry points for subject-matter experts; specialist skills pay more
• Direct impact on how musical AI systems compose, sing, and mix

The role

OpenTrain is hiring a Music Audio Model Evaluation Specialist to review and score generative musical AI outputs and to annotate training audio. This contract, part-time role (less than 20 hours/week) is worldwide and requires Swedish and English proficiency. Pay ranges from $30 to $54 per hour depending on the work assigned.

• Employment type: Contractor, Part-time
• Time: Less than 20 hours/week (flexible)
• Data type: Audio — label types: evaluation rating and classification

What you'll do

• Evaluate AI-generated music for lyrical accuracy, vocal generation quality, musicality, creativity, and prompt adherence
• Score musical training data and rate samples using structured evaluation rubrics
• Compare pairs or sets of audio samples head-to-head for musicality, creativity, vocal quality, and production/mix quality
• Annotate songs with genre, sub-genre, song structure, and vocal or instrumental characteristics using a taxonomy
• Use audio-engineering terminology when assessing outputs (mix balance, EQ, dynamics, spatial placement, artifacts)

Requirements

You must meet all of the listed requirements to be considered for this role.

• 3+ years of experience as a music producer, audio engineer, or sound mixer
• Strong understanding of musical performance, theory, and lyrical composition
• Experience writing lyrical music in Swedish
• Native or near-native proficiency in Swedish and English; comfortable following directions in English
• Ability to evaluate musicality, creativity, vocal quality, and mix/production quality using professional terminology

Who should apply

This role is ideal for experienced music producers, mix engineers, audio engineers, and songwriter-producers who write Swedish lyrics and can judge both creative and technical aspects of recorded music. If you enjoy detailed listening, applying taxonomy-based labels, and shaping how musical AI systems behave, this project is a strong fit.

• Experienced studio professionals with critical listening skills
• Songwriters who compose in Swedish and can evaluate lyrical fidelity
• Engineers comfortable using technical audio terms and judging mixes

How it works

To apply, create or sign in to your OpenTrain account and submit your profile for this role. If selected, you'll receive task instructions, labeling guidelines, and any training materials needed to begin. Work is completed remotely on your schedule; pay is hourly within the advertised range and handled through OpenTrain as the contracting organization.

• Create an OpenTrain profile and highlight your production/engineering experience
• Apply to the role and follow any qualification or sample tasks provided
• Complete tasks remotely and get paid at the hourly rate for assigned work