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Music Annotator Audio Instrument Classification

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Job details

Engagement

Contract, part-time

Location

Remote

Worldwide

Posted

Nov 13, 2026

OpenTrain on Trustpilot

The work

You will listen to short AI-generated audio clips and create accurate annotations for audio-focused AI training. Your main task is to identify the instrument family and the specific instrument heard in each recording.

You will use audio references to make consistent decisions, follow project guidelines, and maintain reliable work across repetitive listening tasks.

  • Identify instrument families such as strings, brass, woodwind, percussion, and keyboard.
  • Recognize and label the specific instrument in each audio clip.
  • Use provided audio references to support consistent classifications.
  • Follow annotation guidelines and maintain accuracy across focused listening tasks.

Requirements

The role is structured as part-time contract work and requires at least 20 hours per week.

  • Hours: 20+ hours per week.
  • Language: Strong English communication skills.
  • Education: Bachelor's degree in music or a related field.
  • Experience: At least three years in music performance, production, audio engineering, or similar work.
  • Skills: A trained ear, strong instrument-recognition ability, and the ability to work independently on repetitive listening tasks.

Open worldwide

Preferred

  • Helpful experience: Transcription, remixing, music information retrieval, AI training, or data annotation.

How to apply

  1. Press Apply now. You create a free OpenTrain account and add your resume.
  2. Finish your application on the hiring company's site. The company decides who it hires, so it runs its own form.

Job ID: cmwff9tmi005a08l5hqymr87z

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