Mixing & Mastering Engineers, Producers & Songwriters who worked with Viktor Ejwertz
Professional Mixing & Production
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Versatile engineer with Bachelor's Degree in Music and over 20 years of experience engineering, playing instruments, and teaching. Cast and recorded the voice of Baby Shark and others for Pinkfong YouTube videos. Number 1 Audiobook on Amazon. Ran sound at NASA event where students interviewed an astronaut on the International Space Station.
With countless hits and production credits to draw from, come to Karoshi to find YOUR sound.
HI, I'm Jessica and I "Went to Hollywood!" twice on American Idol. I'm best described as a mezzo-soprano but I am quite versatile. I am a pop-rock/musical theater singer first but I can sing in many different styles.
Playing different instruments makes me understand the feeling in the song
I am a BLST music producer, in addition to being an artist, I have worked on musical themes such as floy minor's for Europe, which has 10 million reproductions, for benji the damn gold writing, they are artists at a national level, extremely well-known
Music Producer/Mixer/Songwriter (Credits) Linkin Park, Shinedown, Fuel, Cold, Adelitas Way, One Less Reason, Emissary Echo, Sun Never Sets...
Got an idea, vision, or ambition? I’ve got you covered. I’m here to produce and tailor a track that perfectly aligns with your artistic direction, brand, or creative goals, whether you're an artist, label, or company in need of a custom-made banger.
Certified Audio Engineer & Producer trained through Recording Connection Audio Institute. I specialize in crafting dynamic, balanced mixes that capture emotion across every genre, from hip-hop to rock to alternative. My goal is simple, bring your vision to life with precision, warmth, and clarity that translates everywhere.
Recent Successes
"Another very good master job with Andres. Outstanding results!"
"Blake brought my idea to life. A true artist and very open to direction. I would love to collaborate with him again!"
"Brian once again proves himself to be the right man for the job. Blending an acoustic guitar into a full orchestral performance is no easy task, but he pulled it off brilliantly. He will always describe in very intel..."
"It was fantastic working with Klaas on the intro of my DJ Set for an upcoming major festival. He did an outstanding job! Looking forward to the next time we work together"
"It was a pleasure working with Fred, very fast and a great result!"
"It is my second collaboration with Eagle|Stallian and I have to admit they don't stop surprising me with their awesome job! I surely 100% recommend those guys"
"This guy is AMAZING..its really talented with an incredible voice! Is very very professional and he understand exactly what u are looking for! And so fast too!! I hope work again with this supertalented guy!!"
"One of the best artist which i had a chance to work with. Very talented vocalist and great songwriter. Was a big pleasure for me to work with Naomi! Her voice is just brilliant. "
"Incredible Work. Carlos is an EXCELLENT Mastering engineer. Couldn't be happier. I truly recommend him. Thank you Carlos and Natalia!!!"
"Rob is a genius! I can be super nit-picky about mixes but he nailed the the mix right on the first take. He's also a great communicator and super patient. I can't wait to work with him again on the rest of my album."












