Mixing & Mastering Engineers, Producers & Songwriters who worked with MAD-ERA
Lead guitar player for the legendary death metal band Cancer and a prolific solo artist with many albums that showcase his versatility and technical prowess. Now, Robert channeling his vast experience into the world of music production by launching a professional mixing and mastering service, designed for both up-and-coming and established acts.
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Current producer/engineer at Manta Ray Records.
10 years of experience into jazz, blues, soul, bossa, latin jazz, pop, reggaeton, samba, hip hop, bachata, salsa, son, huapango, cumbia and more. Able to create great rythm section and brass section arrangements.
I've mixed and mastered over 500 songs at great quality.
-I have a degree in Music -Drums and keyboard specialization -More than 50 completed tracks
With 7 years of producing for artists, groups, podcasts, companies all over the US. I am your one-stop-shop for all things music! I offer Live Drums Tracks (including midi programmed drums), Bass, Piano, Mixing and Mastering, Vocal Editing and so much more!!!!!!!!!!
Producer, Musician, Mixing Engineer, I can take you to the next level. I work mainly in the Pop, Folk and Rock world. I can reamp you guitar parts or play them for you.
I deliver clear, punchy, and impactful mixes and masters that sound great on any platform. With years of experience in rock, pop, hip-hop, electronic, and indie, I elevate your sound to industry standards. My focus is to enhance each track's unique character, ensuring sonic clarity, depth, and energy while keeping the artist's vision intact.
"Transform your tracks into polished masterpieces with expert mixing and mastering—because great music deserves to sound its best!"
Recent Successes
"Reliable and most importantly, consistent with his work. Looking forward to working with him in the future. "
"This girl is awesome!! She saw the dream, and made it reality!!"
"Delivered very fast and made my song better with lyric modifications in parts where my lyrics were lacking. I would totally work with him again and I recommend you collaborate with him if in need of pro level rap voca..."
"Very professional! Great job Seb!"
"I love how he masters and I'll come back to Qbical soon with another song that needs a master"
"Like always Simms delivers quality. A really great singer and songwriter."
"Best experience on SoundBetter. Minimal edits, full metch and understanding of what was requested. Great taste and excellent performance. I recommend! "












