Prepare a useful mastering handoff
Tell the mastering engineer how the music will be released and supply the version you actually approved.
- Send the approved mix in the agreed lossless format; avoid accidental clipping or a last-minute conversion.
- Include reference tracks with a sentence about what you like, rather than asking for a numerical loudness target alone.
- Identify the release formats, song order, spacing and any alternate versions required.
- Compare the returned master at matched listening volume and check beginnings, endings and metadata.
If mixing is balancing the ingredients of a song, mastering is the final polish that makes it sit right everywhere — in the car, on earbuds, on a club system, next to every other track on a playlist. It's the last creative and technical step before a song is released.
Mixing vs. mastering — what's the difference?
Mixing works with the individual parts: vocals, drums, bass, and everything else, balanced and shaped into one cohesive stereo track. Mastering takes that finished stereo mix and refines the whole thing — overall tone, loudness, and consistency — so it translates across systems and holds up against commercial releases.
What mastering actually does
- Balances loudness, dynamics and consistency for the intended release.
- Tightens the overall tonal balance — no harsh top end, no muddy low end.
- Glues the mix together so it feels finished, not like a rough bounce.
- Prepares the correct formats and levels for each platform you're releasing to.
Do you need it?
A release benefits from a final quality-control pass, but hiring a separate mastering engineer is a creative and budget decision, not a universal requirement. An experienced second listener can help identify translation issues and prepare the required deliverables. Rough demos and work-in-progress shares usually do not need the same finishing process.
Mastering is a final opportunity to check the whole release, not a substitute for a mix you are happy with.
However you deliver masters to clients, Levels Flow keeps every version on one private link with timestamped feedback — so the approval on the final master is as clean as the work that went into it.