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."
Stars is released today!! A fabulous festive song from the brilliant Joanna Gill was composed for the excellent life giving charity Voices of Hope. Stars – Voices of Hope I really enjoyed digging into the track Read more…
I love how Marcus Hedges creates the orchestrations for his Trend Orchestra which I get to bring to life with mastering. This time he’s gone all festive and slowed down Freezeezy Peak from Banjo Kazooie Read more…
Long Wave, a wonderful new orchestral work from composer Sarah Blair is released today! Was a delight mastering this gorgeous track and enjoying it’s musical journey. Long Wave by Sarah Blair Sarah’s inspiration… Long waves Read more…
A wonderful, fun and quirky game soundtrack from the extraordinary Rupert Cole!! Grombi City is the first track to be released from the Completely Stretchy game by Warp Digital, Dan Ferguson & Super Rare Games. Read more…
Jo Gendle has released a beautiful vocal and piano lead album today call Diving Deep. A very emotional journey for her in life and expression. I loved being a part of the process by mastering Read more…
Composer Patrick O’Connor wrote a superb soundtrack for The Secret Box Trilogy! “A nostalgic Fantasy Tale & investigative Sci-Fi Horror Adventure…“ Always a joy to be on board with Patrick and work on his delightful Read more…