Creating Great Sounding Music Together.

Mixing, Mastering & Coaching with
John Elleson-Hartley.

Hi there! I’m a mixing and mastering engineer with a passion for creating great sounding music.

But more importantly, I love working with people to bring their creative visions to life.

Clients include Emmy & RTS winning composer Nainita Desai, Ivor Novello & BAFTA winning Arthur Sharpe, Ivor nominated composer Chris Roe, Ivor winning Ian Livingstone, Joanna Karselis, Alex Parsons, Marie-Anne Fischer, Marcus Hedges, Miguel d’Oliveira, and Arhynn Descy.

With my technical expertise and collaborative approach, I’m committed to delivering top-notch results that exceed your expectations.

Let’s work together to make some amazing sounding music!

John Elleson-Hartley

Cover artwork for Jane Austen's Sanditon Season 2 & 3 by Ruth Barrett, Jon Wygens and David Schweitzer.
Warhammer Age of Sigmar: Realms of Ruin Pre-order Trailer artwork
Chris Roe - Trigger Point original television soundtrack
Postcards from a Pandemic by Arhynn Descy
JoJo Desmond - Studio 54 cover
Courteous Thief - Symphony
The Apricot Hounds - Chapter One
Marcus Hedges

Marcus Hedges

"John helps my compositions and arrangements reach their full potential with his unwavering attention to detail. He’s attentive to what I want for each project and keeps me involved in the process. Without fail, the end result always exceeds my expectations."

Nainita Desai

Nainita Desai

"I know that from the moment I bring John on board a project, his attitude is utterly professional, he’s easy to work with and has a great nature where no request is too demanding. His work is exemplary, highly creative and he goes that extra mile making my music ‘sing’."

Ollie Howell

Ollie Howell

"It’s a pleasure and a privilege to have John’s ears and expertise on one of my projects. His Mastering brings out so many subtle details in the music and really brings the whole soundtrack to life. Above all, John is a friendly, professional and trusted collaborator to bring on board."

Joanna Karselis

Joanna Karselis

"John has quickly become my go-to mixing and mastering engineer. He has a professional attitude, strong attention to detail, and highly attuned ears. His musicality combined with his commitment to top quality audio makes him a fantastic person to work with. I can't wait to collaborate with him again!"

Gavin Keese

Gavin Keese

"John did a fantastic job mastering two of my soundtrack albums. One of these required balancing a wide array of musical styles, which he handled with ease. John is also a complete pleasure to work with: collaborative, clear, and creative. Highly recommended."

Composer Marie-Anne Fischer

Marie-Anne Fischer

"John’s commitment to excellence in his work is truly remarkable. His unwavering dedication, attention to detail, friendly approach and technical expertise to achieve the highest standards, is evident in every project he has mixed for me, making him a standout professional in his field."

Nitzan Sagie

Nitzan Sagie (Freddie Hangoler)

"John is a gifted mixing and mastering engineer. I worked with him on several occasions and every time it was an absolute pleasure. His kindness and willingness to help, makes the entire work process enjoyable and a valuable learning experience. In addition, my opinion is that John is knowledgeable and extremely professional. Attentive to his client's needs, he's able to use his skills in order to bring the final mix and master to the top while serving the client's vision all at once."

Arhynn Descy

Arhynn Descy

"John is an absolute pleasure to work with - calm, professional, detail-oriented and was unfailingly cheerful and polite about the numerous tweaks I requested. Added to that his work is top-notch. One project he both mixed and mastered for me recently, was recorded during the pandemic by the musicians themselves, with a whole array of different mics, background noise etc. John made the album sound like it was recorded in the same place and used his magic to make all the instruments sound fantastic."

Danny De Can

Danny De Can

"It is a pleasure working with John. The work is done on time (we all have deadlines), and delivered perfectly according to specs. Looking forward to many more projects together!"

Dirk Ehlert

Dirk Ehlert

"Having my tracks mastered by John is not only a technical decision. Besides bringing the music up to professional standards he also has an incredible gift (and ear) to preserve the musicality and dynamics within. Definitely my first choice when it comes to mastering!"

Blog

Projects Recap! Oct ’23

It’s time to look back on a few projects recently – blooming superb variety of music from amazing musicians! Whispers of Eloria What would composer Oleta Haffner conjure up to depict the magical mystery and Read more…