Mixing & Mastering Engineers, Producers & Songwriters who worked with Mosaic Sun
Successful Producer, Engineer, Writer and Session Musician with a growing list of commercial credits for worldwide clients.
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Remote Mixing Engineer - Specialising in Rock, Pop & Metal. Previous credits include: SAVE US, Profiler, Superlove, Pentire, Poltergeist, The Sweet, George Glew and many more.
Justin Cortelyou is a Grammy Nominated mixer and engineer located in Nashville, TN. He has worked with artists such as Phish, U2, Alice Cooper, Andrea Bocelli, Johnny Reid, Paul McCartney, Taylor Swift, and many more. Justin works out of his studio, Soultrain Sound Studios, using a hybrid mix in the box with the best outboard equipment available.
Am a cool guy who loves to have fun and a great lover of music
I’ve worked with Ne-Yo, Zaytoven, The Game, and DY Krazy (808 Mafia), bringing industry-level songwriting, rap, production, and mixing to every project. Whether you need a hit record written, a verse laid down, or a polished radio-ready mix, I’ll deliver quality that stands out. Let’s take your music to the next level.
Open to new ideas in the field of audio production.
I understand the importance of getting specialist and reaching work deadlines.
Engineer that’s been developing mixing skills since 2016. I’m here to help finish your track(s) and get the clarity, depth, and loudness you need for distribution. Unless you specifically ask for my creative advice, I am 100% impartial, and will only perform the tasks that are asked of me to the best of my ability. Msg me for info/concerns/advice.
Berklee educated mixer, producer, writer, marketer, and engineer who's worked with artists like Benson Boone, Nessa Barrett, Bebe Rhexa, Chelsea Cutler, and more. With a focus in Pop music, I've mixed a number of tracks and done numerous collaborations for my peers as engineer, producer, and artist.
Recent Successes
"Prompt, professional, and patient. Sefi is pleasure to work with. He listens to the customer and delivers accordingly. Finally found the mastering engineer I've long searched for."
"Thank you for the patience and professionalism you exhibited while mixing and mastering my songs...Juan is a great mix-master who put the time and effort in to please his clients...Give him a try, he is excellent..."
"Francois is a great musician, guitarist and bass performer, very creative who put his soul, his top notch technique and experience to my rock song. He also remixed and mastered the song and the result is perfect. Besi..."
"I literally could not recommend Fuseroom more, I had such an amazing experience working with Alberto and Valeria! They were insanely helpful and extremely professional. I had a particular sound I really wanted, and d..."
"Great job. Ricardo went all the way to make sure we were 100% satisfied. The end results is great!"
"Music has to be mixed and mastered by a professional engineer. Sefi Carmel should be your engineer of choice, no matter what your genre is. He took extra good care of my song "When A Man Loves Another" Listen for y..."
"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..."
"fast & TOP Quality ...great intuition.!!! "
"I tried Leo on one song and he definitely came thru. I came back to him for the next song and once again he performed well. Most of all I like his people skills. It is easy to communicate with this man! "
"I have no complaints with what I received from Diamond Groove Services. "
"Masters sound great, very professional work."
"Mike is one of the kindest and greatest guys I've been ever worked with. Perhaps it is not only worth mentioning his amazing musical skills, but also he had the disposition for giving advise on other topics. I had ..."









