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Mixing Engineer Agreement

For artists and mixing engineers turning recorded tracks into finished mixes.

Drafted by a Harvard Law attorney.

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About this contract

This agreement is for artists and mixing engineers turning recorded tracks into finished mixes. Mastering is not included unless separately agreed.

Key points covered in this contract

  • Mix requirements: multitrack readiness, reference mixes, versions, stems, and review rounds.
  • Fee and schedule: the fee, payment dates, and when the work will be completed.
  • Delivery and extra work: what is handed over, and which changes count as extra work.

Frequently Asked Questions

What are source files, and are they included with the finished work?
Source files are the editable files used to create a finished result. They can make later changes easier, but may require particular software or licensed assets. A service fee may cover only the finished output; source-file delivery and permission to reuse its contents are separate questions.
When do revision requests become extra paid work?
A request can become extra work when it adds something beyond the original brief or exceeds the included revision rounds. A new concept, extra recording session, or additional format is different from a small adjustment. Correcting work that did not meet the agreed requirements may be treated separately from paid revisions.
What happens if I send new recordings after the mix has started?
Replacing a vocal or instrument can mean rebuilding parts of the mix rather than making a small adjustment. That may cost more or move the delivery date. A mixing agreement should distinguish changes to the source recordings from revisions to the mix itself.