Mastering an Indie EP or Album: What to Agree Before You Book

Before you book mastering for an indie EP or album, agree on the approved mixes, running order, intended sound, required versions, delivery formats and realistic approval dates. The engineer needs to know how the release should work as a whole, including which differences between songs are deliberate. Settling those decisions early helps prevent mastering from becoming the place where unfinished production choices accumulate.

Decide what holds the record together

An EP can move from a close, quiet vocal to a dense guitar track without both songs sounding equally loud or equally bright. Cohesion means those changes feel intentional. The same principle runs through our guide to preserving a song's energy during mixing: explain which contrasts and rough edges belong to the music.

Share a proposed running order and explain the role of each track. Which song introduces the record? Where should the energy drop?

Also flag transitions. Two songs that flow into each other need to be considered together.

Ask whether the mastering process will include checking the whole sequence. Reviewing isolated songs alone can miss an uncomfortable jump in bass, vocal presence or perceived loudness.

Approve the mixes before the mastering session

A mastering booking should start from mixes you intend to release. If the balance inside a song still needs work, our guide to choosing a mixing engineer for alternative music can help you plan that earlier stage.

Listen for unresolved decisions before delivery: vocal balance, guitar harshness, drum impact, edits, unwanted noises and endings. If a chorus needs the vocal raised, or a distorted guitar needs changing independently of everything else, return to the mix.

Mastering may reveal something you missed. Agree how a replacement mix would be handled, especially if it arrives after work has started. Ask about additional costs and timing.

Give files clear version names, and identify one approved mix per song. A folder containing several “final” mixes leaves a decision unresolved.

Describe your references through intention

A reference is more useful when you explain why you chose it.

“The vocal feels close without making the band small” gives clearer direction than “make it sound like this.” So does “keep the drums punchy when the guitars become dense.”

Use a small, relevant selection and identify the moments that matter. Include your rough mix if its energy or tonal balance expresses something important.

References also have limits. A sparse arrangement cannot become a heavily layered production through mastering. Discuss the desired character, rather than asking the engineer to reproduce every technical measurement of a different record.

Agree on the mix-to-mastering handoff

Ask the mastering engineer what they want to receive before exporting the final mixes.

Discuss file format, sample rate, bit depth and whether processing on the mix bus is part of the approved sound. If compression or saturation defines the mix, explain that. If a limiter was added only to make a listening copy louder, ask whether the engineer wants an alternative without it.

Avoid treating a particular peak level as a universal rule. What matters is a clean, usable source and an agreed workflow. Turning down a file does not undo distortion already printed into it.

Supply the track list, running order, reference notes and contact details for whoever can approve changes. If mixing and mastering involve different engineers, make sure each understands who handles replacement files and final sign-off.

List every version you need

“An album master” can mean different things to an artist, label, engineer or distributor. Write down the scope before booking.

Your checklist might include:

• The main release version of each track.

• Clean edits, radio edits or instrumentals that are actually required.

• Separate files and any continuous listening version needed for approval.

• Streaming, download, CD or vinyl deliverables, where relevant.

• Track titles, order, version names and required metadata.

• The delivery method and who checks the final files.

Alternate versions often need preparation during mixing. Tell the mix engineer early if you need instrumentals or clean edits; mastering cannot reliably create a clean instrumental from an ordinary stereo mix.

Ask which deliverables are included in the quote and which require additional work. Vinyl preparation and CD production involve requirements that should be discussed specifically.

Build the deadline backwards

Start with your intended release date, then work backwards from the distributor’s submission requirements.

Leave room for file checks, your first listen, consolidated feedback, any agreed revisions and delivery of corrected files. Before those stages, allow enough time to finish and approve the mixes.

Ask the engineer about current availability and agree dates for both delivery and feedback. A booking date is different from a guaranteed completion date.

Choose one person to collect comments from the band.

If time becomes tight, discuss the schedule before work begins. Rushing final decisions can leave the record with problems that were avoidable.

Keep Spotify loudness advice in context

Spotify uses loudness normalization during playback. Its normal setting targets −14 LUFS, and its published mastering tips recommend −14 integrated LUFS, with true peaks below −1 dBTP. For masters louder than −14 LUFS, it recommends keeping true peaks below −2 dBTP. These are recommendations, not a mandatory −14 LUFS upload requirement. Spotify’s loudness and mastering guidance.

Spotify also normalizes an album together during album playback, while individual tracks are adjusted separately in contexts such as playlists. That supports discussing the relationships between your songs, including deliberate quieter moments. Spotify’s album normalization guidance.

Agree a mastering direction that serves the music and check it at comparable listening levels. A loudness figure alone cannot tell you whether a chorus feels powerful or an acoustic track still breathes.

Frequently asked questions

Can the songs on an EP have different loudness levels?

Yes. Deliberate contrasts can help the release work as a whole. Tell the mastering engineer which changes in intensity belong to the record.

Should I book before every mix is finished?

You can discuss availability and reserve time earlier. Agree when approved mixes must arrive and what happens if the schedule changes.

Do I need a separate master for every streaming service?

Do not assume that you do. Spotify says one high-quality stereo master per track is sufficient for its service. Confirm the deliverables your distributor and any other release formats require. Spotify’s delivery guidance.

Plan mastering while the mixes are taking shape

Tapetown works remotely on indie and alternative mixes from Denmark. Mastering requirements and the handoff to trusted mastering engineers can be discussed alongside the mixing process.

Send Tapetown your rough mixes, references and intended release date to discuss what your EP or album needs before the final files are prepared.