Mixing and mastering engineer John Elleson-Hartley is incredibly passionate about making music sound as good as possible.
Collaborating personally with composers and artists to help bring their tracks and albums to life, ensuring they are completely happy before releasing their music to the world!
John also offers one-to-one online music production coaching and advice for those wanting to improve their skills and sound.
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.
View works mixed and mastered by John Elleson-Hartley,
"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."
"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’."
"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."
"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!"
"I worked with John on my debut EP, and his technical expertise and encouraging spirit paired together to make a smooth and overall exciting musical process. Would highly recommend for anyone unsure on how to give their demos a new life!"
"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."
"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."
"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."
"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."
"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!"
"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!"
I had a fantastic time yesterday giving a guest lecture and two seminars with students at King’s College London. The lovely Joanna Karselis invited me along to share some information on mixing and mastering basics Read more…
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…
Here’s a behind the scenes chat I had with composer Oleta Haffner. She recorded this chat of us going through some of the things I did in the mix of her fantastic epic fantasy video Read more…
A little look back on a few projects this year and I’m always grateful for the variety of music I get to work on. Keeps me on my toes 😀 An excellent single from Irish Read more…
Here’s the fantastic SSL 9000 J plugin getting the What It Does treatment. Putting it through its paces and seeing what it does visually with the Bertom EQ Curve Analyzer. I love to visually see Read more…
The incredibly creative composer Miguel d’Oliveira has been working on Michael Palin’s latest travel adventure in Iraq. I’ve mixed and mastered several tracks for this project. It’s always a fantastic experience to delve into Miguel’s Read more…
The wonderful Didier Recloux wrote an excellent theme track for this new BBC World series, Take Me to The Opera. I got to mix it for him a couple of months ago – thankfully he emailed me Read more…
Here’s what I did to tweak the mix for Sam Paul Robinson‘s instrumental track Nothing Grows Like Greed. He sent this through to me as the Logic Pro session to see how I could help Read more…
The new F122 game has recently been released with music provided by the amazing Ian Livingstone. Additional music by Miktek. Wonderful high octane tracks for me to master on this soundtrack album. Below is the Read more…