Mixing & Mastering Engineers, Producers & Songwriters who worked with Ghost Hermes
Musicians with ears for the most cutting edge in experimental hip hop production. Witch House; Boom Bap; Dark Trap
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500M+ streams as songwriter, including credits for Feid, Yandel, Thalia, Icon Music, among others. I'll make your ideas come to life with the very best of my lyrics and toplines. Let's get to it!
My main goal is to co-create with as many artists as possible - I genuinely enjoy turning ideas into art. Having started my own music journey not too long ago, I took all the time before to develop my skills and nurture my talents.
So, you've just finished recording and producing your song, and now you want to make sure it becomes a hit with the right mix? I'm your guy! I want to work with you to bring your vision to life, and help you create a sound that you'll be recognised by.
I will be your french singer for your next sound
I play very well almost everything (but horns!)- for 38 years I've overdubbed many kinds of creative arrangements from full orchestral re-creations with real acoustic instruments to soundscapes with real ethnic acoustic instruments from the World. I play well all guitars, basses, cello, viola, violin, keys, perc, flutes, harp, drums and voice.
I only care about making great music, nothing else.
I help independent artists bring their vision to life with professional songwriting and production that feels authentic, emotional, and ready for release. My process is collaborative, detail-driven, and always focused on what makes you stand out.
I’m Marty “Codebluu” Hart II—an artist, producer and engineer with 90+ credits and 9M+ streams. I deliver big Neve/TLM 49 vocals, D-BOX+ analog-summed mixes, mastering, Dolby Atmos, custom production and rap features—with clear communication and polished, release-ready sound.
Recent Successes
"I have no complaints with what I received from Diamond Groove Services. "
"I've worked with several mix engineers but Sefi really stands out from the crowd and... will make your music better too!"
"Online Guitar Tracks, i.e. Lars, is a great guy to work with. Fast turnaround, dedicated, involved, very flexible, uncomplicated. Nice, clean, melodic guitar work. Not to mention that his price is a steal. Just booked..."
"Great Artist!"
"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..."
"What can I say about Mike? He takes his time. But he does it for a reason. He will work with you until you are absolutely happy with your mix/master. I would highly recommend this engineer to anyone. He will take..."
"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 ..."
"highly recommended. very skilled, creative, and good attention to detail. quick turnaround. professional. "
"Good to work with and great communication."
"I got a great mix from David. He knows how to make your song have a great sound and quality. You should try his services, you won't regret. "
"I'm very happy with the result of work of Eric Greedy, his mixing and mastering process gave life and strength to my music, at the same time sounding professional and nice. I recommend Eric without doubt! "
"Fuseroom are professional/communicative/friendly. I gained new insights into refining my sound and was impressed with the warm/analog feel and dynamics that were added to my composition. I recommend business with them..."












