How to Choose a Mixing or Mastering Engineer

The short answer

Choose by sound first, then by process. Listen to records they worked on in your genre, check that their credits are real, ask how they handle references, revisions and delivery, and start with one track before you hand over a whole album. Price matters, but an engineer who gets your sound right the first time costs less than three who don't.

1. Listen to their work in your genre

A great hip hop mixer is not automatically a great techno mixer. Low end, vocal treatment and loudness work differently in every genre. Ask for two or three releases close to your style and listen on systems you know: your monitors, your headphones, your car. If their work already moves you, you are in the right place.

2. Check that the credits are real

Credits are easy to claim and easy to verify. Look the engineer up on Muso.AI, Discogs or the credits section of Spotify. A verified profile, or credits that match what they list on their site, tells you the work is theirs. Also look at the role: assisting on a big record is valuable experience, but it is a different job from mixing or mastering it.

3. Ask how they work

• References: do they ask for reference tracks and your goals before starting?
• First version: will you hear a version on your own speakers before anything is final?
• Revisions: how many rounds are included, and what counts as a revision?
• Delivery: which files you get, for example WAV masters for streaming, a separate club or vinyl version, stems, or DDP for a CD plant.
• Timing: a clear turnaround before you commit, not after.

4. Start with one track

For an EP or album, book one song first. It shows you how the engineer listens, how they take feedback and whether the result fits your sound, without committing the whole budget. Most good engineers are happy to work this way.

5. Judge the communication

You will spend weeks going back and forth over details. Notice how quickly and clearly they answer your first message, whether they ask about your music or only about money, and whether they explain their decisions in words you understand.

Red flags

• Promising a specific loudness number or chart placement before hearing your track
• No clear number of revisions
• Credits you can't find anywhere else
• No first version to check before final delivery
• Very cheap, very fast offers for full albums, which often mean presets instead of listening

Questions to ask before you book

• Can I hear two or three releases in my genre?
• Where can I verify your credits?
• How many revisions are included?
• What exactly do I receive at the end?
• When will I get the first version?

Mixing, mastering, or both?

If your song is still a set of separate tracks, you need mixing first. If you have a finished stereo mix you are happy with, you need mastering. Many artists book both with the same engineer, so the mix is made with the master in mind. If you're unsure, the guide on mixing vs mastering explains the difference.