Mixing & Mastering Engineers, Producers & Songwriters who worked with Sad Heroes
-Professional Mixing and mastering. -Song production (specializing in rock, pop, EDM)
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Hi and welcome. It will be a great pleasure to work with you! I'll work until you are satisfied! That's my motto. I'm looking forward to hearing from you.
A professional singer/songwriter with 14 years experience, working as a top line writer for the last 4 years. Having written sample packs for Loopmasters & DrumDrops, I’m able to produce and arrange vocals and am able to write in many styles and genres. With a recording studio set up, I can record to studio professional standard from home.
Sound Engineer of Leila Pari , opener of Coldplay tour with H.E.R., MusaStone, Ryan Leigh , other minor artist mainly from USA. He had possibility to work and see biggest mix engineers (as Illangelo, Jaycen Joshua , Sonny Digital , Andrew Scheps ) working on tracks for TheWeeknds, DuaLipa, PostMalone, Travis Scott and other minor artists
Over 30 years of experience on tour & in the studio. Worked with most of the top artist from the Latin Pop/Rock industry. Won 2 Grammy and 6 Latin Grammy awards as session musician.
I'm currently looking for a job or project related to composition, arrangement, sound design, video editing, mixing, mastering, and beatmaking. I'd love to hear from you soon.
I will provide ready-to-use trap, hip hop & corrido bélico beats (catalog)
Kingwallace is an independent hip-hop artist and producer operating under Kingwallace Marketing/Records LLC and NorthernXposureRecords. Known for projects like Da-Rebirth 3 and The Alliance 1, he writes, records, mixes, and masters his own music. His 2025-2026 releases include tracks like "What Are You Afraid Of" and "Keep My Name out ya Mouth".
Versatile catchy flow, real life experiences turned into a HUGE catalog. Self produced. I make all my own beats. All genres something for everyone. It’s BiG A-rab MONEY… BITCH!!!
Recent Successes
"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..."
"Great work. Trustworthy fellow!!"
"A great musician!! %100 recommended!! :D"
"Andrew works quickly and communicates well to finish your job. He sent over test masters quickly and even gave me a couple of different ones, which went a long way in my decision to hire him. He did an excellent job,..."
"His price was low and his mixing was good. It is easy to tell that Irving knows what he's doing. Thanks!"
"Mike is simply great! He easily understood every small detail we had in our vision for the song, made our sound solid and saved us from the infinite revisions nightmare by just getting it right with every step of the ..."
"Eric truly is a master at what he does. I will never use anyone else again. If you want to sound your best, look no further and hire him. He is extremely professional, talented, and incredibly easy to work with. H..."
"Awesome work."
"Candela was great to work with...professional and very talented. I'm looking forward to doing more vocals with her and would definitely recommend working with her."
"great professional, great person, a pleasant surprise! He brought out the best from my music and did it in a short time. I recommend him!"
"I have no complaints with what I received from Diamond Groove Services. "
"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..."












