Mixing & Mastering Engineers, Producers & Songwriters who worked with Simon James
Hi, I'm a musician, composer, arranger, sound engineer and producer with decades of experience producing music of every conceivable genre. I have two Gold Discs, one for a UK number one single - Brimful of Asha by Cornershop. I have also arranged music for the some of the UK's top orchestras and produced music for film, radio and TV.
I'm a songwriting and music production student at NYU, I play bass and specialize in R&B, Funk and Soul.
High quality work at an affordable price
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An experienced creative music professional at your service.
GrammyNominated•BMI Award Winner •Beyoncé •NickiMinaj #Anaconda •Chris Brown •EMPIRE/Star •Timbaland •EarthGang •Syd •Fergie & MORE
Vocalist and songwriter working with some of the top 50 best artists/writers. Credits Iggy Azalea, LÉON, Paloma Faith, TAEYEON. 200 million streams workwide and have collaborated with amazing producers such as Brian Lee (Post Malone, Justin Bieber), Klas Åhlund (Robyn,Teddybears) & GRADES (Nao, Dua Lipa)
Thank you for your interest! I hope we can work together to create your vision.
Music is more than sound—it's emotion. As a producer, composer, and vocalist, I turn raw tracks into polished, industry-ready songs. I've worked on projects like “Diciembre” by Angeliett and the K-pop World Festival Ecuador, bringing precision and creativity to every mix. Let’s make your music unforgettable.
I specialize in creating emotive, high-energy tracks that blend melodic vocals with the pulse of house and electronic music. My work focuses on bringing originality, soul, and a professional finish to every collaboration whether you need toplines, vocal recordings, or full production.
Mixing & Mastering Engineer focused on Techno, Hardtechno & Electronic Music. Combining digital precision with analog warmth to deliver emotional, powerful and clean mixes that hit hard on any system.
Recent Successes
"highly recommended. very skilled, creative, and good attention to detail. quick turnaround. professional. "
"Dustin really knows how to sing, and it was a pleassure working with him! fast delivery and great quality!"
"I have no complaints with what I received from Diamond Groove Services. "
"fast & TOP Quality ...great intuition.!!! "
"Paul is very professional, prompt, and is very easy to work with. He took the time to ask specific questions about what we needed, and made it work. Above all, the quality of his musicianship was excellent, and adde..."
"Excellent studio for mixing and master, very personal follow-up with nice ideas and taste. By far my best sounding track."
"A great musician!! %100 recommended!! :D"
"Robert L. Smith is a true professional! Very helpful and got my tracks sounding their absolute best! Highly recommended! "
"After Eric I won't look for another engineer. His mixes are beautiful and flawless. Not only are his skills exceptional but he is professional, polite, and prompt. Eric is also very willing to offer suggestions and..."
"Lonny is an amazing guitarist. His musical skills and passion brought my song to a whole different dimension. Working with Lonny was easy, he understood what I was looking for and nailed It !!!!!!!!!! Lonny will be do..."
"Jack Cole did a test master for me and it sounded beautiful, definetly and new client now and it the future. He does great work"
"That’s a real chance to feel the spirit of fantastic rock sound, working with Eric. I told him to mix my song just as he liked and he did it as I’d wished. It was a kind of the next step in my vision of my own music. ..."
