First-time clients
Three revision rounds come as standard. On your first song I take the cap off entirely, so we keep going until you would actually release it. Drop your email below and I will send you the code.
What the code does
I am the only person who touches your record. Never an assistant, never an offshore team.
Matty HarrisMixing and mastering engineer
Hear the difference
Every track here was recorded by a real independent artist and mixed and mastered in my Los Angeles studio. Hit play, then switch between Before and After. It stays in the same spot, so you are hearing the same bar twice.
Credits
Muso.ai verifies credits against commercial releases, so the number is checkable rather than a claim. It ranks me in the top 1% of mixing and mastering engineers worldwide, in both disciplines, not just one. The wider total is 3,020+ songs delivered for artists in 56 countries, most of them independent records without a formal credit attached.
CucoMixing / Mastering
ericdoaMixing / Mastering
2RareMastering
Cousin StizzMixing / Mastering
Carly Rae JepsenMixing
HuddyMixing
WrabelMixing
DaffyMastering
Amaya GloorMixing
ElskedMixing / Mastering
LeadleyMixing / Mastering
Jack & JackMixing / Mastering
Still WoozyMastering
FlipperachiMastering
Sammy AdamsMixing / Mastering
Leikeli47Mixing
Joey FattsMixing / Mastering
LionwareMixing / Mastering
Diana SmithMixing
WhookilledkennyMixing / MasteringAll verified on Muso.ai.
What clients say
Every review below is from a verified purchase. Nothing here is solicited, edited for tone, or written by anyone who did not send me a song.
“Spent years working with other mixing and mastering engineers, just settling for the results. Working with Matty, I finally get that sound, on each and every track, that’s even better than what I could have envisioned myself.”
Mixing and Mastering Pro
“I was a little intimidated sending my songs off for mix and master for the first time and Matty could not have made the process easier. As a returning customer, I highly recommend Matty for your next project.”
Mixing and Mastering Pro
“Great sounding mixes and easy, fast to work with. I’ve used a few comparable (and pricier) online mixers but keep coming back to Matty because the end result is superior.”
Mixing and Mastering Pro
“I’ve struggled to elevate my mixes in the mastering stage without emptying my bank account, but that’s changed since going to Matty. He not only delivers 10x over from a quality perspective, he is reliable and easy to communicate with.”
Stereo Mastering
More at Reviews.io, where the rating is 5.00 from 18 reviews.
Pricing
No quiz, no quote, no “contact for pricing”. These are the prices. Your code makes the revisions unlimited on whichever one you pick.
Most popular
$349Pro, per song
More hands-on
$449Elite, per song
Already mixed? Mastering only is $70 stereo or $110 stem. See mastering →
Common questions
Three to five business days for a mix and master. Revisions come back in 24 to 48 hours. There is a 48-hour rush option at checkout if a release date will not move.
No. Grab it now and use it whenever the song is actually ready. That is the whole point of sending it to your inbox.
Stems or a DAW session. For mastering only, a stereo WAV or AIFF at the session’s own bit depth and sample rate, peaks around -3 to -6 dBFS. Bus glue compression is fine and can stay. If you had a limiter on the master bus, send one version with it and one without, plus a screenshot of the settings.
Me. Every song, start to finish, in my studio in Los Angeles. It never goes to an assistant or a junior engineer. That is why I cap how many I take at once.
Then we keep going. That is what unlimited means. Tell me in plain English, “vocal up, less reverb” is enough, and I will move it.
It lands in your inbox in a minute or two and it does not expire. Send the song whenever you are ready.
Send me the code