Mixing, Mastering & Coaching with John Elleson-Hartley

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Elevating Your Music Together

A selection of people and companies John Elleson-Hartley has worked with.

View works mixed and mastered by John Elleson-Hartley.

NEWS

Blog post artwork for "Bruma" by Hilgrove Kenrick

Bruma. Hilgrove Kenrick’s Piano Day Track

Here’s a gorgeous Piano Day 2026 track from the fantastic Hilgrove Kenrick! Bruma

Blog post artwork for "The Lady" soundtrack by Chris Roe.

Wonderful “The Lady” Soundtrack by Chris Roe

Released today is the fantastic Chris Roe soundtrack for the four-part TV drama “The Lady“. Enjoy listening below and on your favourite streaming service. The Lady Soundtrack About The Lady: The series is a partly Read more…

Mixed & Mastered

“I See You’re Alone” Soundtrack by Alexandra Skevington

Out now is this award-winning original soundtrack. Composed by Alexandra Skevington for the short horror film ‘I See You’re Alone‘ directed by Danielle Spontak. The plot focussed on a song which took out the eyes Read more…

Blog post artwork for "Steganogram" album by Insides And Outsides.

Mastered

Steganogram from Insides And Outsides

This album blew my mind when Mike Torr (Insides And Outsides) sent me an example of a track before starting mastering his track. I was watching words appear on the spectrograph as the track played. Read more…

Blog post artwork for "siheilw" from Gwenno Morgan.

Mixed & Mastered

Siheilw by Gwenno Morgan

A gorgeous piano piece from Gwenno Morgan with a wonderful story. Siheilw siheilw is a traditional Welsh lullaby, reimagined through my personal lens. It was a song my Dad used to sing to me as Read more…

Blog post artwork for "Kiss Me" from Leah Tatjana.

Mixed & Mastered

Kiss Me for Valentine’s Day from Leah Tatjana

A perfect Valentine’s music release from South African film composer Leah Tatjana. Kiss Me

Blog post artwork for "Seven Summits" by Mina Samy.

Mastered

Seven Summits Soundtrack by Mina Samy

Seven Summits, the soundtrack for the movie “Al-Seven Peaks” is now available on all platforms! The story of Saudi adventurer Badr Al-Shaibani was directed by Amir Al-Shanawi. Listen on your favourite streaming platform to this Read more…

Mastered

“Jealous People are Ugly People” Soundtrack

Released today is this fantastic original soundtrack, for a new BBC short, from composer Rupert Cole. Jealous People Are Ugly People Jealous People are Ugly People (Original Soundtrack) by Rupert Cole Consumed by his jealousy Read more…

Blog post artwork for "The Last Train To Platform None" by Miguel d'Oliveira.

Mixed & Mastered

Miguel d’Oliveira takes the Last Train To Platform None

Here’s a superb new song from the marvellous Miguel d’Oliveira. Such fantastic lyrics in this track, Last Train To Platform None. Last Train To Platform None Written while at film school in 2006 at low Read more…

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

"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

"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

"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!"

Noah Totten

"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!"

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."