Mixing and Mastering Service That Delivers Results
Welcome to Mix and Master My Song, a professional online mixing and mastering service based in Los Angeles and trusted by independent artists, producers, and labels around the world. Led by Billboard-charting engineer Matty Harris, our studio delivers radio-ready mixes and masters across every genre — from hip-hop and pop to rock, R&B, country, Latin, and electronic music. Whether you’re releasing your first single or your tenth album, you’ll work directly with a seasoned pro who has mixed and mastered records for Kelly Clarkson, A$AP Rocky, Travis Barker, and Cuco. Upload your tracks from anywhere in the world and get back a polished, streaming-ready master in just 3–5 business days — with unlimited revisions until it sounds exactly right.
Kelly Clarkson
A$AP Rocky
Travis Barker
COMPANIES WE’VE WORKED WITH
100+ 5-Star Reviews
Ranked Top 1% Globally for Mastering
Apple Digital Masters Certified
Professional Audio Services
Mixing, mastering, coaching, and presets — everything you need to release with confidence
Online Mixing & Mastering
Our flagship service combines professional mixing and mastering into one seamless package. Matty personally handles every stage — balancing your stems, carving EQ, dialing in compression, tuning vocals with Melodyne, aligning timing, replacing drums when needed, and finishing with analog mastering for that warm, radio-ready sound. You’ll get a polished, cohesive track ready for Spotify, Apple Music, vinyl, radio, and sync placement. Perfect for artists who want a single engineer to shepherd their song from raw stems to final release.
Stereo & Stem Mastering
Already have a finished mix? Our mastering service takes your stereo bounce (or mastering stems) and transforms it into a commercially competitive master. We deliver streaming-optimized files, Apple Digital Masters certified releases, vinyl pre-masters, and club-ready loud versions — all cut on the same analog chain used for major label projects. Stem mastering gives us extra control over vocals, drums, and bass for mixes that need a little more polish than traditional stereo mastering can provide.
Mixing & Mastering Coaching
Want to level up your own mixes instead of outsourcing them? Our coaching service pairs you one-on-one with Matty for custom mix breakdowns, live Zoom sessions, and detailed feedback on your sessions. You’ll learn the exact workflow, plugin chains, and decision-making process used on major releases. Ideal for DIY producers, home-studio engineers, and artists who want to grow their skills while still getting professional guidance on current projects.
Mixing & Mastering Presets
Our preset packs give you instant access to the same starting points Matty uses on hit records. From vocal chains built in FabFilter, Waves, and UAD to full mastering chains for different genres, these presets are designed to save hours of guesswork and get you 80% of the way to a professional sound in seconds. Compatible with major DAWs and updated regularly with new genres and techniques.
Hear the Difference
Before & After Mixing and Mastering Examples
Every track below was recorded by a real independent artist and mixed and mastered right here in Matty’s Los Angeles studio. Hit play to hear the raw, unprocessed recording — then slide to the “after” to hear the finished, radio-ready result. Available across Hip-Hop, Pop, R&B, Rock, Singer-Songwriter, Electronic, and Country.
Apple Music
Why Choose Mix and Master My Song?
What sets us apart from other mixing and mastering services
Direct Access to a Proven Pro
When you book with us, your song doesn’t get passed to an assistant, a junior engineer, or an offshore team. Matty personally handles every mix and master from start to finish. With credits on Billboard-charting records and collaborations with artists like Kelly Clarkson, A$AP Rocky, and Travis Barker, you’re getting nearly two decades of major-label-level experience dedicated entirely to your track. That means better creative decisions, faster problem-solving, and a finished product that holds up next to anything on the radio.
Unlimited Revisions Until You’re Happy
Most mixing services cap revisions at two or three rounds and charge extra after that. We don’t believe in that model. First-time clients get unlimited revisions completely free — no hidden fees, no surprise invoices, no pressure to sign off before you’re ready. We’ll keep tweaking the vocal level, adjusting the low end, brightening the snare, or rebalancing the bus until you’re 100% happy. Your song is done when you say it’s done.
Fast, Streamlined Workflow
We know how it feels to wait weeks for a mix. That’s why our workflow is built for speed without sacrificing quality. Once your stems are uploaded, your project goes into the queue immediately and most first drafts are delivered within 3–5 business days. Revisions are typically turned around in 24–48 hours, so your release timeline stays on track. Whether you’re racing to a distribution deadline or prepping for a tour, we keep your project moving.
World-Class Sound, Fair Price
Our studio is equipped with the same analog gear, plugins, and monitoring used on platinum records — but our pricing is built for independent artists, not major-label budgets. We believe great sound shouldn’t be locked behind $5,000-per-song rates. Transparent pricing, no upsells, and the same quality bar applied to every project, from a bedroom producer’s debut to a label-funded album.
How It Works
Simple 3-step process to get your music professionally mixed and mastered
Purchase & Upload
Once you purchase, you’ll receive a confirmation email with an upload link. Upload your tracks(or DAW Session), and we’ll take care of the rest.
Takes ~10 minutes
We Mix Your Song
As soon as we receive your files, we schedule your song and get started. Everything is done in our world-class Los Angeles studio.
3-5 business days
You Receive the Mix
Once complete, we’ll send the master for your review. From there, we’ll begin the revision process to make sure everything sounds exactly how you want.
Revisions in 24-48hrs
What Our Clients Say
100+ five-star reviews on Trustpilot, Reviews.io, and Google
Matty is my go-to mixing and mastering engineer. I have been working with him for several years and he has essentially become an extension of me and my creative team.
DJ Pleez
Producer
Matty’s my guy! I’ve used his professional mixing and mastering services since I started my career, and I won’t stop using them till I’m done!
Cam Meekins
Hip Hop Artist
I have never before worked with a more professional studio engineer than Matty! He is a perfectionist that delivers his mixes at the highest quality level.
Luis Mesquita
Singer & Songwriter
Meet Your Engineer
I’m Matty Harris, a seasoned music mixing and mastering engineer with nearly two decades of experience. Over the years, I’ve collaborated with a diverse array of artists, including big names like Travis Barker, A$AP Rocky, Kelly Clarkson, Cuco, and numerous others.
Throughout this journey, I’ve had the privilege of working with talented artists from various corners of the globe. Witnessing their remarkable successes has been incredibly fulfilling.
My goal is clear: to support independent artists by providing top-notch mixing and mastering services at affordable rates. Your music deserves to stand out, and together, we can make that happen.
Billboard Engineer
Apple Digital Masters
Top 1% Globally
20+ Years Experience
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Frequently Asked Questions
Do you work with independent artists or only signed artists?
Both — but independent artists are actually the majority of who we work with. Whether you’re releasing your first single or your fifth album, you get the same level of attention as any major label project.
Does Matty personally mix and master every song?
Yes. Unlike larger services that pass your music between multiple engineers, Matty handles every project personally. You’re not getting a team member or an assistant — you’re getting the guy with the credits.
How much does it cost?
Pricing depends on the service and package. You can view all current rates on our pricing page — but we offer options for every budget, from standalone mastering to full mix and master packages.
What genres do you work with?
All of them. Hip-hop artists like A$AP Rocky, pop artists like Sammy Adams and Huddy, rock artists like Travis Barker, singer-songwriters, electronic producers, country acts, Latin artists — if you make music, we can mix and master it. Matty has worked across virtually every genre over 20+ years, so your sound is in good hands no matter what you make.
What do I need to send you to get started?
For mixing, you’ll send your individual track stems (exported from your DAW). For mastering only, you send your final stereo mix. We’ll walk you through exactly what we need after you place your order.
How many revisions do I get?
First-time mixing clients get unlimited revisions — we want you to be 100% happy with your mix before we call it done. No caps, no pressure, no hidden fees.
Ready to Make Your Music Sound Professional?
Join hundreds of artists who trust Mix and Master My Song
✓ First-time clients: Unlimited revisions FREE (use code: FIRSTMIX at checkout)