Mastering engineer Holger Lagerfeldt profile picture

Holger Lagerfeldt

Mastering engineer

Holger has been making waves in the music industry for 30 years. In the 1990s he made his mark as a Danish Grammy-nominated producer before transitioning to full-time mastering 20 years ago.

His back catalog contains more than 20,000 mastered songs, featuring numerous #1 hits. He has collaborated with best selling artists from around the world and amassed 256 certified gold and platinum awards.

Above all, his passion for music drives him to extract the best from every mix he works on, regardless of whether he is partnering with a multi-platinum artist signed to a major label or an indie artist or producer in pursuit of the perfect sound.

A satisfied client is the best ad

Music producer Mich Cutfather Hedin


Zedd · Katy Perry · Calum Scott

"It's important that our tracks sound as good as possible. Holger delivers in spades!"

Cutfather is an institution in the Danish music industry, an X-Factor judge, and still going strong.

Music producers Nexus - Jon & Jules

Nexus Music

Nik & Jay · Joey Moe · Burhan G

"Holger matches the sound quality of the biggest mastering studios in the U.S. and offers a more flexible service!"

Nexus Music has ruled the charts for two decades with more than twenty #1 hits.

Artists and producers Infernal - Paw & Lina

Paw & Lina

Demi Lovato · Céline Dion · Rhys

"Holger's mastering service is so good it's made us better at producing and mixing!"

Paw & Lina have had five #1 hits on the Dance Chart and are a platinum selling producer and songwriter team.

Jazz pianist Niels Lan Doky

Niels Lan Doky

NHØP · Pat Metheny · Dave Sanborn

"Sublime work. I'm impressed by and grateful for Holger's meticulous work and essential contribution to the end result!"

Doky is a world-renowned jazz pianist and producer, knighted by HM The Queen in 2010.

Selected credits

Credits are for official releases on Spotify/Tidal/Apple Music, iTunes, CD & vinyl

Alexander Oscar
Alle Farben
Aloe Blacc
Astrid S
Camille Jones
Cedric Gervais
Chris Kläfford
David Guetta

Demi Lovato
Ed Sheeran
Eric Saade
Fabian Mazur
Fatman Scoop
Flo Rida
Hailee Steinfeld
Ida Corr
James Arthur
James Blunt

John De Sohn
Lil Yachty
Lukas Graham
Måns Zelmerlöw
Martin Jensen
Molly Sandén
Monsta X

Rasmus Seebach
Rita Ora
Sean Paul
Swing Republic
Timmy Trumpet

Indie artists include Linying, Tuarrah, and Knifebird, as well as movie, instrumental and jazz music from The Oscar Peterson Legacy Quartet, Steffen Schackinger, and Thomas Bryla.

  Spotify playlist with examples.

See the latest gold and platinum awards in the home page news.

Mastering credits record label logos 1
Mastering credits record label logos 2

Vinyl highlights

Caroline Henderson - Cinemataztic vinyl cover
Re-mastering a classic

Caroline Henderson - Cinemataztic

When Sony Music wanted to re-release this seven times Danish Grammy winning album to celebrate its 20th anniversary, they approached me with the task of carefully restoring and re-mastering the original versions from digital archives.

Due to the helical scan write heads used for DAT this job included procuring several tape players to find a compatible azimuth for an optimum transfer, as well as gentle digital processing and spectral repair.

Indie synth-pop

Jacob Bellens - Trail of Intuition

The 2018 solo album from Jacob Bellens (I Got You On Tape) on HFN Music (Trentemøller, Blaue Blume, Lydmor) was mainly produced by Rune Borup, whose signature sound includes wide and lush analog synths and deep bass.

The songs have Jacob Bellens' voice as the focal point, but also feature prominent drums, so the vinyl masters required full use of the dynamic range, a controlled stereo image and a focused low end.

Jacob Bellens - Trail Of Intuition vinyl cover