This collection showcases my work as a music producer, mixing & mastering engineer, and songwriter. Each track presents a side-by-side journey from demo to final master—highlighting the transformation that takes place through editing, mixing, mastering, and arrangement refinement.

You’ll hear raw recordings evolve into polished, professional productions ready for release. Some tracks also feature my own contributions in songwriting and performance, blending creativity with technical expertise.

This portfolio demonstrates the full scope of what I offer through Malevolent Productions:
🎚️ Audio editing & mixing
🔊 Professional mastering
✍️ Songwriting support
🎸 Performance & production

Whether you’re looking to bring clarity to a rough demo, elevate your mix, or create music from the ground up, this portfolio reflects the attention to detail, musicality, and technical skill I bring to every project.

Before vs After - Space Raiders (ProbeNation)

Verse 1
When I woke up in the morning light,
The sky was burning, golden bright.
I felt the silence, heard the sound,
But shadows started coming round.

Verse 2
I tried to hold the warmth inside,
But storms were moving, could not hide.
A hidden weight began to rise,
Dark clouds gathered in the skies.

Chorus 1
Dark clouds in the shining sky,
Questions with no reason why.
Even when the light is near,
Shadows whisper… I still hear.

Verse 3
I walked the streets, the air was cold,
A fragile heart, a story told.
I tried to laugh, I tried to sing,
But storms erased the joy I bring.

Bridge
You can’t erase the fire inside,
The storm won’t steal the breath I take.
Though heavy clouds may block the way,
The light will learn to stay.

Final Chorus / Climax
Dark clouds in the shining sky,
Hope and sorrow intertwined.
Even when the day is bright,
Shadows dance within the light.

Dark Clouds in the Shining Sky

Mixed & mastered by Borys.  
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6
This is an example of my work in a before/after style.
Notice how deeply I worked on the groove and how powerful the song started to hit after the mix!
Listen to the clean vocals that don’t interfere with the instruments but still stand out in the mix.
Pay attention to the drums — how big and powerful they became.
Evaluate the depth and width of the sound after mixing.

Before/After (rock) - Mixed & Mastered by Borys

Dubai

Escape

Another Job

2 FACES REVERSE
168 BPM
MASTERING BY : AKOU

2 FACES REVERSE

This song Miss Fortune - Fetanyl was provided by Nail The Mix's Portfolio Builder. I do not own the rights to this song, it is for educational and personal portfolio mixing purposed ONLY.

Miss Fortune - Fetanyl | Justin's Mix

Band/ Artist: Diamon B
Song: Prisoner
Genre: Metal

The song is written and recorded by the band "Diamon B".
Mixing, Mastering & Art Work by myself.

Prisoner

Mixed & mastered by Borys.
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6
Listen to how the vocals opened up after my mixing — how clear they became.
Hear how the groove started to hit, how rhythmic the drums became and how well they blend with the bass. Notice how much depth and width the sound has gained!

Before/After (Pop) - Mixed & Mastered by Borys

Mixed & mastered by Borys.
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6
First, the raw demo: muddy guitars, uneven levels, flat drums. Then — the mixed & mastered version: loud, energetic, and punchy without losing the raw punk attitude.  
This is how your track can go from rehearsal room to release-ready. 

Before/After (punk) - Mixed & Mastered by Borys

Mixed & mastered by Borys.
Want your music to sound professional and ready for release?
Message me!
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6

Examples Before/After:
1) Punk - https://soundcloud.com/borysmixing/beforeafter-punk-mixed-mastered-by-borys
2) Pop - https://soundcloud.com/borysmixing/beforeafter-pop-mixed-mastered-by-borys
3) Rock - https://soundcloud.com/borysmixing/beforeafter-rock-mixed-mastered-by-borys

Heroin - Mixed & Mastered by Borys

Mixed & mastered by Borys.
Want your music to sound like this?
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6

Examples Before/After:
1) Punk - https://soundcloud.com/borysmixing/beforeafter-punk-mixed-mastered-by-borys
2) Pop - https://soundcloud.com/borysmixing/beforeafter-pop-mixed-mastered-by-borys
3) Rock - https://soundcloud.com/borysmixing/beforeafter-rock-mixed-mastered-by-borys

Korotenkie Nojki - Mixed & Mastered by Borys

Mixed & mastered by Borys.
Get your music mixed & mastered:
👉 More works: borysmixing.com/#beforeafter
👉 Contact me here or via Fiverr: www.fiverr.com/s/dDqddj6

✔ Clear vocals  
✔ Punchy drums  
✔ Wide, balanced sound  
From pop to punk — I make every track sound professional and release-ready.  

Examples Before/After:
1) Punk - https://soundcloud.com/borysmixing/beforeafter-punk-mixed-mastered-by-borys
2) Pop - https://soundcloud.com/borysmixing/beforeafter-pop-mixed-mastered-by-borys
3) Rock - https://soundcloud.com/borysmixing/beforeafter-rock-mixed-mastered-by-borys

Unhappy - Mixed & Mastered by Borys

1. Everyday
2. Starlight
3. Sunny
4. Take It Easy
5. Tomorrow Is A other day
6. Hold On To Love
7. I Refuse
8. The Lotus Symphony

Netsky Remix Tape (Articuno ReReMix)

Band/ Artist: Magician's Nephew's
Song: Get out of bed
Genre: Rock

The song is written and recorded by the band Magician's Nephew's
Mixing, Mastering & Art Work by myself.

Get out of bed

Cold Messiah, by Boogie Snail, is mixed and mastered by www.bsmastering.com

[Opus Collection] OPUS 002  By Oz aka Muzik By Oz
Muzik By Oz Records - Pioneer Dj Rec - Opus Collection

Mix & Sampling By Oz aka Muzik By Oz [Muzik By Oz Records]

(c) OLIVIER ZAVATTIN - MUZIK BY OZ RECORDS - 2025

MUZIK BY OZ RECORDS

OPUS 003

beatport

[Studio Edition] Opus 002 By Oz aka Muzik By Oz (Muzik By Oz Records)

Best Music !!!
Thanks For Following 🥳
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Professional Mixing & Mastering Engineer with 15+ years of experience in TV and music.  
Worked with hundreds of tracks where speed and quality were crucial.  
I specialize in mixing vocals, full songs, and mastering for streaming platforms.  

✔ Clean, polished, radio-ready sound  
✔ Affordable packages on Fiverr  
✔ Fast communication  

Contact me here or via Fiverr: https://www.fiverr.com/s/XL6zBrG

Mix and Master Engineer based in Texas. Here I will be uploading songs that I have mixed and mastered for my portfolio. I DO NOT OWN THE RIGHTS TO THESE SONGS.

Booking : info@ritualrave.be
Syneses record

Versatile and energetic DJ with 12 + years of experience performing across clubs and private events in Europe. Known for dynamic sets blending house,deep,tech, progressive and electro with seamless transitions and crowd-reading skills. Skilled in music production, live remixing, and building immersive sonic experiences.

🎵 Malevolent Productions – Independent music production services.
Offering: Editing • Mixing • Mastering • Songwriting
Helping artists turn raw ideas into polished, professional tracks without breaking the bank.
Contact us today to discuss your project!
malevolentproductionsofficial@gmail.com

Depuis 1992, 
Oz aka Muzik by Oz, Artiste Indépendant, 
basé en Catalogne, dans le Sud de La France, distille un son pur et technique au grès de ses humeurs, aucunes limites ni styles s'offrent à lui. 
Ici et Ailleurs, de la Tech House à l'Electro Jazz en passant par la Minimal, sa distillation de bpm est tout en sagesse ou non.
En 2022, il lance sa propre maison de disques, Muzik by Oz Records, pour promouvoir sa vision de la musique électronique et soutenir d’autres artistes underground aux styles singuliers, signature Muzik By Oz Records. Discret, son style s'installe ici et ailleurs à travers des collaborations internationales, ces tracks et remixes sont joués dans les Clubs Légendaires et les Festivals les plus tendances.
En résidence sur la Militia Underground Radio à Paris, dont il est un des co-fondateur, il distille chaque semaine des Dj's Sets sous différents styles. A l'International, c'est en Argentine
qu'il pose ces Dj's Set, sur Planet Music Radio.
2024, en Collaboration avec La Camionnette Sound 6Tem, il affirme ces 30 ans de tricotage aux influences Pop, Punk, New Wave en mode Street Underground Music dans l'esprit d'un Sommelier Troubadour qui débarque en J7 dans les Vignobles du Sud de La France, c'est son dernier projet, 
le Wine Truck Sound 6Tem, du Djing, du Live pour une performance Artistique inédite avec ses complices du moment,
L'histoire continue et ce, jusqu'au dernier soupir.
Amour et Partage…

Oz aka Muzik by Oz, underground artist, based in South of France, distils pure & technical sound with is moods, no limits or styles available to him.
From Tech House to Electro Jazz to Minimal, bpm distillation is all about wisdom or not.
In 2018, musical goldsmithing asserts itself, some call this « the maturity », with leitmotif to offer groove, emotion & unbridled sense of the festival through a sharp & facetious production under the famous brand Muzik by Oz Records.
Oz display his Magic Electro « Made In Catalunya » in Dj’s Set through an International production under the Label iM Electronica.
Love & Share…

Oz aka Muzik by Oz, artista underground, en Catalunya, Sur de Francia, destila puro y sonido técnico con sus estados de ánimo, sin límites ni estilos disponibles para él.
Desde Tech House hasta Jazz y Minimal Electro, la destilación de bpm se trata de sabiduría o no.
En 2018, la orfebrería musical se afirma, algunos lo llaman "madurez", con el leitmotiv para ofrecer el ritmo, la emoción y el sentido desenfrenado de la fiesta a través una producción aguda y graciosa Bajo la marca Muzik by Oz Records.
Oz exhibe su Electro Magic "Made in Catalunya" en Dj's Set a través una producción internacional bajo la etiqueta iM Electronica.
Música es Vida…

Label              : iM Electronica - Zürich - Switzerland
Label              : Muzik By Oz Records - Occitanie - France
Studio            : Muzik by Oz Records - Perpignan - France
Mastering      : Audio 3K Mastering - Madrid - Spain
Dj's Resident : Militia Underground Radio - Paris - France
International Dj's Resident : Planet Music - Argentina  

Label Artists [Muzik By Oz Records]
 
DJs PRODUCER : 

Oz aka Muzik By Oz - Occitanie - France
DexXxter                   - Occitanie - France
JINGXi                       - Grenoble - France
JINGXi Official : https://soundcloud.com/cynthia-bellot

ICONIC VOICE - INDEPENDANT ARTIST
Bird RBD                    - Vocal Iconic - Roumania
Soundcloud Official : https://soundcloud.com/birdrbc

New tracks tagged #mastering