Sell stem-mastering packages to indie labels by listing one scoped service priced per batch: a fixed track count, a fixed number of stem groups per track, one turnaround window, and one price. The label sends stems and specs; you deliver release-ready masters, and you never re-quote a catalog request from scratch.
FanBell is free to start with no monthly fee and applies a 12% platform fee only when a fan pays (pricing).
A single mastered track and a label's mastering relationship are two different products. A label rarely needs one song mastered once — it needs a repeatable process for a release calendar: an EP this quarter, a compilation next, a back-catalog remaster after that. Engineers who already master one-off tracks for individual artists can package that same skill as a standing, priced Creator Service built for a label buying in batches. The same standing-offer logic works for composers fielding one-off brand outreach — see how to take brand inquiries for sync licensing as an indie composer.
"Nearly thirteen thousand labels and seven million artists can now reach listeners at scale in any country in the world." — MIDiA Research, State of the Independent Music Economy
That fragmentation is the addressable market for a label-facing mastering package: thousands of small operations releasing multi-track projects with no in-house mastering engineer on staff.
What is a stem-mastering package, and how does it differ from single-song mastering?
A stem-mastering package is a priced, multi-track engagement: a label sends grouped instrument and vocal buses — not one finished stereo mix — for several songs at once, and you return masters for the whole batch under a single scope, a single turnaround, and a single price. Single-song mastering covers one finished file for one artist.
Sage Audio's published definition draws the line precisely: "Stereo mastering is a mastering process in which one stereo file is used; whereas stem mastering is a mastering process in which multiple instrument groups or stems are used". Selling a single-song mastering service covers the one-file case; a package covers multiple tracks, multiple stem groups per track, and a repeat-client label relationship.
The extra stems are also why the work costs more. Sage Audio's own pricing page lists Standard Mastering at $49 per song but prices Stem Mastering at $49 per stem (Sage Audio pricing) — a per-stem unit rather than a per-song one. Say the same thing explicitly in your listing so a label understands why a stem batch is not billed like a stereo batch.
Why would a label buy a package instead of one-off masters?
A label buys a package because it needs one consistent sound across a whole release and a single number it can budget against, not a fresh negotiation per song. A named batch also fixes turnaround against the release calendar, so the label can schedule mastering before the mixes are finished and re-buy the same shape next cycle.
Independent, non-major labels are not a fringe segment: their revenue climbed 8.2% to $10.7 billion in a single year, per MIDiA Research's global recorded music revenue report, and independent labels and distributors represented by Merlin alone account for 15% of the global recorded music market share. Release volume is rising alongside that revenue, and Luminate attributes the growth to independents rather than majors.
"106K ISRCs were delivered to DSPs (digital service providers like Spotify, Apple Music, YouTube et al.) each day in 2025, a +7% increase over the 99K daily average in 2024. The share of major distribution is down from 8% in 2024, signaling that ISRC growth is coming from the independent distribution sector." — Luminate, 2025 Year-End Music Report
A batch relationship also reduces friction: the label doesn't re-explain its sound on every track, and you don't re-quote scope from zero each time. Naming a package — tracks included, stems per track, turnaround, price — turns a recurring back-and-forth into a standing offer a label's A&R or ops person can just buy again.
How should a stem-mastering package be scoped and priced?
Scope a package by three fixed variables — track count, stem groups per track, and turnaround — then publish one batch price instead of a per-track estimate that moves with every email. A simple formula works: (your per-track rate × tracks included) + (your per-stem rate × stem groups above the included count) + a stated rush uplift.
Published studio rates give you anchors for the per-track term. Abbey Road Studios lists its remote mastering at $130 per track for its Standard package and $200 per track for Enhanced, each including one set of revisions (Abbey Road Studios online mastering). At the accessible end, Sage Audio lists Standard Mastering at $49 per song and Stem Mastering at $49 per stem. Those two published rates bracket most independent per-track pricing; where you sit inside that range is your call.
Turnaround has a published anchor too: Abbey Road states that "online mastering should take a maximum of 5 working days from the point of payment," with a paid FAST TRACK option delivering "in 1-2 days" (Abbey Road Studios help). A rush tier priced above a standard tier is normal industry practice, not an upsell you need to apologize for.
| Package | Tracks included | Stems per track | Turnaround | Illustrative price (sample listing copy) |
|---|---|---|---|---|
| EP Batch | 4-6 tracks | Up to 8 stem groups | 5-7 business days | e.g. $600 for 5 tracks at a $120 per-track rate |
| Single-Release Add-On | 1 track | Up to 8 stem groups | 48-72h rush | e.g. $180 (per-track rate plus a stated rush uplift) |
| Compilation / Catalog Batch | 10+ tracks | Up to 6 stem groups | 10-14 business days | e.g. $1,000 for 10 tracks at a discounted $100 per-track rate |
| Back-Catalog Remaster Batch | 5-10 tracks | Varies by original stems available | 10-14 business days | Quoted per batch after a stem audit |
Every number in that table is sample listing copy written to show the shape of a package — the track counts, stem caps, turnarounds, and dollar figures are arbitrary examples, not survey data, benchmarks, or a recommended rate. The only externally sourced figures on this page are the published studio rates and turnaround cited above. Your own numbers depend on your experience, genre, room, and the label's catalog.
Treat anything outside the named package — extra tracks, extra stem groups, a rush turnaround — as a separate, stated add-on rather than folding it into one price that quietly stops covering the actual work.
What technical specs should a label-facing listing state upfront?
A label-facing listing should state four things before payment: the stem format and maximum stem count you accept, the delivered file specs, the loudness target you master toward, and how many revision rounds are included. Publishing those four lines lets a label check its session against your package without emailing you first.
One practitioner-level warning worth putting in writing: in batch work, the most frequent scope dispute starts with mismatched definitions of the word "stems." Treat that as a listing risk to close with an explicit definition and a stated cap, not as a measured statistic — no published study quantifies it.
| Item | What to specify | Why it matters |
|---|---|---|
| Stem input | File format, sample rate/bit depth, and a maximum stem-group count — Sage Audio notes that "mastering engineers typically allow up to 8 stems total" (Sage Audio, Preparing a Mix for Stem Mastering) | Sets what counts as "in scope" per track |
| Reference track | Whether the label can attach one reference per track or per release | Aligns tonal expectations across a multi-track batch |
| Output loudness | Target platform and range — Spotify says it adjusts tracks "to -14 dB LUFS, according to the ITU 1770 standard," and advises creators to "target the loudness level of your master at -14dB integrated LUFS" and keep it "below -1dB TP (True Peak) max" (Spotify for Artists) | Streaming platforms normalize loudness, so stating the target signals you know the spec |
| Delivered resolution | Bit depth per platform requirement — Apple's provider documentation states that "Apple Digital Masters is all about the quality of the source" and centers the program on 24-bit source audio (Apple Music Provider Support) | A catalog batch may need different delivered formats per DSP |
| Revisions | Rounds included per track, and whether they're per-track or per-batch — Abbey Road's published packages include "one set of revisions" | Keeps a 10-track batch from becoming 10 open-ended relationships |
On FanBell, the label picks the offer, pays the full displayed price upfront as a guest with no account to create, and files move through the creator's page in one flow (how it works).
Should stem-mastering packages be a Paid Private Question or a Creator Service?
Use a Creator Service, not a Paid Private Question, for stem-mastering packages. A Paid Private Question is text-only from the fan, and the creator replies by text or voice — no audio files move in either direction on that offer. A stem-mastering package needs multi-file uploads in and delivered masters out, which only a Creator Service supports.
| If the label needs… | Use | Why |
|---|---|---|
| Mastered audio files delivered back | Creator Service | Supports file uploads from the buyer and file, audio, or video delivery from the creator |
| Written or voice advice on stem prep, gain-staging, or export settings — no files | Paid Private Question | Text-only in, text or voice out; no audio files in either direction |
| A quick sound check before committing to a batch | Paid Private Question first, then a Creator Service | Lets a label test fit at a low price before buying a multi-track package |
Creator Services carry a creator-set price and turnaround, with per-delivery windows capped at 120 hours in the product. A larger catalog batch may therefore need to be split into staged deliveries inside that cap — state the staging in the listing rather than discovering it mid-batch. FanBell is asynchronous by design: there are no live calls or scheduled sessions, so a label buys a delivery, not an appointment.
How do you handle a label that becomes a repeat client?
Treat a repeat label exactly like a first-time one: every batch is its own priced, scoped, prepaid purchase confirmed before work starts. A recurring relationship needs no off-platform contract and no running tab, because the label simply re-buys the same named package — or a larger one — each release cycle at a scope and price both sides already know.
Even a standing arrangement — say, mastering every release across an artist's upcoming album cycle — can be sold as a series of individually priced purchases, one per release or batch, rather than one open-ended engagement. Contrast that with a one-off life-event commission such as selling custom wedding vow songs, where there's no recurring batch to repurchase at all. That structure keeps a request that outgrows the batch (a mid-project format change, an unplanned extra track) a decline-and-refund-or-repurchase decision instead of unpaid extra work: FanBell states plainly that a creator "can decline and refund" any request.
What should a stem-mastering package listing exclude?
A stem-mastering listing should name its exclusions as plainly as its inclusions: no mixing passes, no stem separation from an already-bounced stereo file, no unlimited revisions, and no written A&R notes unless you sell those separately. Exclusions stated before payment cost one line; exclusions discovered mid-batch cost a refund.
The most common mismatch is a label sending a stereo mix and asking for "stem mastering" on it. If the label cannot supply actual multitrack stems, that is a stereo mastering request — covered by selling a single-song mastering service — or a mixing job, covered in how much to charge for mixing and mastering.
Also state whether written notes ride along with the delivered masters, or whether track feedback is a separate offer — selling song feedback covers written critique as its own lighter-touch product, distinct from a delivered master file. A request that's really a fan-facing customization rather than a label mastering pass belongs to a different product entirely — selling custom remixes and mashups to fans and selling custom DJ drops and producer tags cover those cases.
Frequently asked questions
How many stems can a label typically send per track?
There is no universal standard, but there is a common working ceiling: Sage Audio writes that "mastering engineers typically allow up to 8 stems total". State your own cap in the listing so a label knows before sending files whether its session fits your package or needs a custom quote.
Can a stem-mastering package include mixing changes?
Not by default. Mastering assumes stems are already balanced relative to each other; if a stem needs level or EQ rebalancing beyond mastering-stage adjustments, that is a mixing request. State the boundary in the listing, then decline and refund or redirect to a mixing offer if a batch arrives needing mix-level work.
Do I need a business entity or contract to sell to labels?
FanBell's published setup is three steps — claim your link, turn on offers, connect a Stripe account for payouts — and no company-registration step appears in it. Whether you need an entity, a contract, or a tax registration for label work depends on your jurisdiction and the size of the engagement, and FanBell's setup flow is not a substitute for that check.
What does FanBell charge on a stem-mastering package sale?
FanBell is free to start with no monthly fee and takes a 12% platform fee only when a label pays, with creator earnings calculated as "fan payment − platform fee − processing fee". Card processing is separate: Stripe's published US pricing is 2.9% + $0.30 per successful domestic-card transaction (Stripe pricing). Worked example on a hypothetical $600 batch: $72 platform fee, roughly $17.70 in US card processing, leaving about $510 — an illustrative calculation, not a quote, since processing varies by country and card type.
What if a label sends more tracks than the package covers?
Decline and refund the request, or ask the label to repurchase a larger package or an add-on before you begin. Stating the exact track count and stem-group cap in the listing up front makes an over-scope request a fast correction rather than a dispute mid-batch.
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