Mixing & Mastering Engineers, Producers & Songwriters who worked with The Opposed
Professional Songwriter/Producer based in the Heart of Music City U.S.A
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I'm a working musician, making a living as a touring and session guitarist.
Aotu is an independent, individual creator. He loves music and sound engineering, and has spent countless hours honing his specific skillset. If you like the distinct character and tone of Aotu's releases and engineering work, you will find that he is well-suited to bring that same touch to your music.
Professional and top quality post-production services, with 15 years of experience in the business, working with excellence and distinction in remote jobs.
My goal is to empower independent artists by providing cutting-edge and personalized mastering services at an accesible rate. I have worked as an assistant engineer for Grammy-Award winning artists Keith Richards and Steve Jordan from The Rolling Stones, Norah Jones and other notable acts like: Kevin Abstract, slowthai, Santigold, and Ski Mask.
Produced several tracks now on Spotify, hired for original compositions: house tracks, pop songs, jingles and soundtracks.
Cantante y Compositor Dominicano
If you want a professional mixing and mastering for rock, metal or even rap, I'm your man!
Lyricist and songwriter offering original lyrics and melody ideas.
Recent Successes
"Robert is an amazing mixer. He pays attention to details and listens to suggestions. He was extremely patient and dealt with the project in a professional manner. It was a pleasure working with him and I hope our path..."
"I've worked with several mix engineers but Sefi really stands out from the crowd and... will make your music better too!"
"Masters sound great, very professional work."
"It was a pleasure to work with Mike. He took my song to another level! Thank you!"
"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."
"Great guy, a lot of drive, willing to get the job done."
"No word to qualify Maestro Mike Makowsky, Your are just wonderful. Thank you so much for the Great Mix you did with you beat heart for me. GORGEOUS GORGEOUS BROTHER. I will back as soon as possible. GOD BLESS "
"I was very fortunate to work with Andrew. We did a mixing shootout with many engineers, and his mix was one of the best among all the other mixes. He has a great sense of intuition and aesthetics, great feeling for so..."
"Kain was an absolute delight to work with. He was professional, and was able to get the masters back to me very quick. Due to my neurotic nature, I had a few tweaks I wanted to make (due to my unbalanced mixes more ..."
"Dan did a stellar job. actually did more than i had expected him to. awesome."
"This is the great job made by Sefi on my new song WALKING DEAD: https://www.youtube.com/watch?v=ojAWZdkO2bE You know what? I will have remix some of my previous songs too... he's so good!!! "
"Good to work with and great communication."












