Mixing & Mastering Engineers, Producers & Songwriters who worked with John Heinrich
I am a composer, arranger and music producer. Working in many genres but mostly jazz, rock, blues and hip hop. I have been composing and producing for about 10 years and have worked with many musicians of all styles and levels. No matter what your musical level I can make you sound good.
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Established lounge , Chill & world fusion artist producer with millions of Cds sold in the genre, looking to help younger artist to develop their style & sound
Need a fire song? Commercial Reggaeton , Trap Latino , R&B, Trapeton? Contact me
I can do country, rap, pop, and much more.
Put your music and vision in the hands of an innovator who absolutely loves sound. Someone who listens to all genres of music. Someone who prefers quality over quantity. Someone who is a student of music scaling back through every era (50's,60's,70's,80's,90's,00's, etc.) You've come to the right place,with the right tools including Waves and more!
Indie musician/producer specializing in chill/ambient/lo-fi vibes.
Skilled in all facets of music production. Mixing, Mastering, Editing, Comping, Synth Plugin Programming, Trumpet Playing, etc.
Professional Mixing/Mastering Engineer with 10 years of experience. My credits include: Bronzed, Negative School, Coded Marking
Soy cantautora con más de 10 años de trayectoria, creando canciones con alma y propósito. Mi música fusiona sonidos latinoamericanos, folk contemporáneo y letras poéticas que cuentan historias reales con sensibilidad y fuerza. Mi canción Sol de agua está nominada este año (2025) a los Premios ACAM en Costa Rica y a los Premios Estela en Guatemala.
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."
"Firstly I have to say this " He is really loves his job and he really insightful to person who working together" This was my first job with professionals and I am so happy for worked with RC RECORDS PRODUCCION MUSI..."
"Robert Smith did a great job he mastered 10 songs mixed by 2 different people different levels I was very impressed with the results. He knows his stuff. "
"The experience of working with François Michaud at Wild Horse studio has proven to be professional and highly skilled. The man knows his sound and gear. He mixed and mastered our song to the level that none of us expe..."
"Out of all of the engineers, Wes was an OBVIOUS choice on the result of our single, "Control"!! My voice sounded crystal clear on every speaker we played!! (passed with flying colors) Even the samples we used in..."
"Excellent studio for mixing and master, very personal follow-up with nice ideas and taste. By far my best sounding track."
"Dan did a stellar job. actually did more than i had expected him to. awesome."
"Lukas has been great! I definitely recommend him. He has a very fast turnaround time, is very cooperative, and is very professional -- both with the sound quality of the mixes and the way he does business. "
"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..."
"Matty was recommended to me and it was the best thing getting in touch with him. He has rare qualities - an amazing musican, producer, sound engineer, intuitive, responsive, interpretative and understanding. I cannot ..."
"Easy to work with, polite, and caught the vision of my record. This is the second engineer that I could say, knows what he is doing. God willing I will be sending him more records to mix and master for future projects."












