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."
Rise Above The Fire is an epic new track from Marcus Hedges and Shelley Harland! It’s the second release in the Resonance Universe and introduces the character of Ashlynn. Resonance: Rise Above The Fire The Read more…
Composer Fernanda Areis has put Westwood Instrument‘s Alt Choir through its paces to create a gorgeous sample track. I thoroughly enjoyed mixing and mastering this track for her. You can listen to it, along with Read more…
The fantastic Marcus Hedges dove headfirst into Halloween this year, whilst channelling his inner Danny Elfman, with his Trend Orchestra version of Luigi’s Mansion! This style is very much up my street and I loved mastering it Read more…
What better a time than Halloween to release the soundtrack for a short psychological horror film about a “perimenopausal vampire on a quest to kill a habit that won’t die!” Oleta Haffner wrote an excellent Read more…
This will be a joy for Minecraft fans! 13 tracks beautifully orchestrated and given a new life from composer Marcus Hedges. Released under his superb Trend Orchestra, this album will transport you on a wonderful Read more…
Composer Marcus Hedges has launched a brand new music-led, narratively-driven universe called Resonance. The first character to be introduced to the world is The Warden. I Am The Warden by Marcus Hedges So much fun Read more…