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…


View works mixed and mastered by John Elleson-Hartley.
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…
A perfect Valentine’s music release from South African film composer Leah Tatjana. Kiss Me
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…
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…
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…
Released today is this uplifting new track from the lovely Anthony White! Rise This release is a really emotional one for me – three years in the making and finally ready to be shared with Read more…
Joanna Karselis has released the video for her festive track for the year, “Joy to the World“! There’s even a couple of outtakes at the end to enjoy! Joy To The World Such a lovely Read more…
My very good friend, Marcus Hedges, has written the marvellous music for another Jurassic World Evolution trailer. This time it’s for the Wetlands Pack launch for Evolution 3. Jurassic Park Evolution 3 – Wetlands Launch Read more…
Absolutely marvellous music from the fabulous Brolly Brollyman for this beautiful animation. “The Ghost of Midwinter” (‘Ysbryd yr Oerfel’) is screening this Christmas Day at 5:30pm on S4C in the UK. Watch the trailer below! Read more…
"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."