
From self-recording beginners to signed artists with thousands of streams, I offer professional Editing, Mixing, and Mastering across genres like Rock, Pop, Hip-Hop, Electronic, Singer-songwriter and more. Always with a commitment to quality and unlimited revisions to get your sound just right.
Hi, I’m Samuel David Alvarez, a Berlin-based Mixing Engineer and the creative force behind MasterpieceMixing.
With 15 years of experience, I’ve worked with rising artists whose work reaches millions of listeners worldwide. My mission? To transform your raw tracks into polished, premium-quality productions that stand out.
Each mix and master reflects your unique vision while meeting modern production standards and preserving the emotional depth and character that make your music truly memorable.
Don’t let your songs get lost in the crowd. Together, we’ll amplify that life-defining element in your music that resonates deeply and leaves a lasting impression on your audience.
Ready to unleash your music’s full potential? Hit the Contact button, and let’s make magic happen!
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Would love to hear from you. Click the contact button above to get in touch.
Endorse Samuel David Alvarez18 Reviews - 3 Repeat Clients
check_circleVerifiedSam never fails to provide! Amazing quality of work, turnaround time, and communication. Absolutely would recommend to others!
check_circleVerifiedAs always Sam went above and beyond expectations! Not only does he iron out the wrinkles, he puts great effort into every detail - big and small, and adds a distinct creative flare that totally transforms the original mix. Such a highly-skilled professional and a pleasure to work with, as always!
check_circleVerifiedAs usual, Sam went above and beyond with every track, not only offering patience and professionalism, but adding unique touches that really made the songs stand out. Such a pleasure to work with!!
check_circleVerifiedAmazing work and service!! Samuel somehow exceeded the excellence from the last release and went above and beyond my expectations!
I cannot recommend Samuel enough if you're looking for professionalism and high-quality tracks!
check_circleVerifiedSamuel did an amazing job with mixing and mastering my song! Not only exceeded my expectations but did this so quickly, with high attention to detail and added creative touches that just took it to the next level. I would definitely recommend Samuel and will be returning for future projects!
check_circleVerifiedAmazing work
check_circleVerifiedThis was an urgent project and I required extremely fast delivery. Still, Sam not only delivered a professional project -- it was STUNNING. ABSOLUTELY STUNNING.
Thank you for making my music as close to perfect as possible!!
check_circleVerifiedSamuel blew it out of the park with this one. STELLAR mix/master!
check_circleVerifiedAgain, a pleasure to work with Sam. This one required almost no back and forth because of the expedient mixing/mastering success, but even with a few rounds, Sam is committed to making it as close to perfect as possible.

I have worked with Sam on multiple projects and can honestly say that he is a TRUE and RARE talent. He is technically sound but it's more than that. He has used his skills to bring my projects to LIFE! I won't use another engineer. I STRONGLY recommend him. He is excellent.

Excellent work both mixing and mastering.
Has taken my demo songs to a new level ready to be added to a cd or online service.
Brilliant work all round.
Thank you Sam for your integrity and professional manner. It is a pleasure to work with you and your work is superb. Mahalo
I have collaborated personally with Samuel for a plethora of projects during the last 5 years. I am confident that he is able to fulfill sound production projects from beginning to end with over the top quality and professionalism.
Among the projects we have worked together are worth mentioning sound effects and stingers for corporations, to whole soundtrack arrangements for music videos.
Something characteristic about Samuel is that he looks forward to delivering high-quality sound assets and services while also being very proficient at understanding and executing his clients' vision.
Sam is professional, likeable, extremely easy to work with, and above all, will work without fail to make sure that the final product meets your exact standard. I have worked with him on two different projects, and both times, I found the experience to be stress-free, and more importantly, the final work to be mixed/mastered to a very high standard.

Sam is a wonderful artist and a generous professional. I've worked with Sam on almost all of my songs. He has always been willing to go the extra mile to achieve the perfection required for the song and in several cases far exceeded my expectations. I look forward to working with him a lot more in the future.

Sam's work is absolutely fantastic. We've been working together for 2.5 years and I am totally happy that I have found him. We just finished an album and it sounds marvellous. Looking forward to future projects.

I started working with Sam over a year ago and now I rely on him to mix and master all my work. He's one of the rare talents that has the ear and tools to do both. Sam is super easy to work with - it's done when it's right, no exceptions - because he takes a lot of pride in his craft. He'll also do some slight producing if you ask in terms of timbres, panning effects, etc. I really like how thorough his delivery is - for my label, I need instrumentals, vocals, and everything broken out and he does that for me, so it makes it really convenient. And for all this, his prices are competitive.

Sam is super professional and easy to work with. The experience was positive and he made sure to meet all my expectations. I highly recommend him and I will use his services again.
Interview with Samuel David Alvarez
Q: What advice do you have for a customer looking to hire a provider like you?
A: Share any detail, small or big, about your project. It's important to have open and clear communication from the start.
Q: What other musicians or music production professionals inspire you?
A: As a Mixing Engineer, I grab inspiration with great-sounding recordings, no matter the genre, so I'm always on the lookout for good quality music, innovative sounds, and great performances.
Q: Can you share one music production tip?
A: The most important stage of music production is Recording. If you have a nice arrangement and a good Recording, you will have the foundation for a great Mix.
Q: What type of music do you usually work on?
A: I usually work with Electronic Music, Hip Hop, Pop, R&B, EDM, Rock, Indie, Singer-Songwriter. I'm always ready for any style.
Q: What's your strongest skill?
A: I'm very detail-oriented, and I'm always looking for that little tweak or move that will bring the song to the next level.
Q: What do you bring to a song?
A: I treat every track based on its unique needs, but I'm always looking to give my Mixes a warm and round sound, without sacrificing the clarity and brightness that requires #1 Hits, great vocal definition, and competitive loudness levels. I will do everything I can to bring artist's vision to life.
Q: What's your typical work process?
A: I always like to share a few words with my clients before starting to Mix; I like to know their thoughts and goals for the project, as well as their influences and the sound they're after. Then, I will take a detailed listen to the song, define the needs of the track, and start the flow of ideas. After I have a full understanding of the track and having the goals of the artist in mind, I will start to Mix.
Q: Describe the most common type of work you do for your clients.
A: Mixing, Mastering, and also Editing, Pitch Correction and Audio Restoration.

I was the Mixing and Mastering engineer in this production
- Mixing EngineerAverage price - $150 per song
- Mastering EngineerAverage price - $50 per song
- Vocal TuningContact for pricing
- EditingContact for pricing
- RestorationContact for pricing
Mixing and Mastering:
- Unlimited Revisions
- 4/7 days Delivery Time.
- If you need Editing and/or Pitch Correction, please contact me.
A free Master of your track included when you purchase my Mixing services for the first time.



