Mixing & Mastering Engineers, Producers & Songwriters who worked with Spectrum Mortis
I'm a professional Audio Engineer specialized in Metal, Rock and Extreme Metal productions. I run my own studio - The Empty Hall - located in Madrid, Spain, where I have produced, recorded, edited, mixed and mastered hundreds of albums and EPs. Also, I have assisted and done preparation work for other renowed Audio Engineers worldwide.
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Acoustic Music Producer / Mixer for Rock, Indie and Alternative Bands
The right bass track will help to support your song and help drive all its moving pieces forward. I can bring you that track.
Ready to make your music dreams a reality? Let's sculpt sonic magic together – your vision, my expertise. Let's create something unforgettable.
Budget friendly Mixing and Mastering Engineer Trained in Stereo Mixing , 5.1 Mixing , Dolby Atmos .
Producer, beatmaker. Electronic, afro, hiphop, pop. Sometimes drummer.
Singer-songwriter with a passion for creating music that makes the listener feel strong, authentic emotions. The goal is to transform your vision into a beautiful masterpiece, with a decent music theory background and strong relative pitch to help produce harmonies and clean vocals. I've produced music for a local artist, Elizabeth Lee.
MULTI-GENRE PRODUCER/COMPOSER SPECIALIZING IN ROCK, POP, COUNTRY, REGGAE, FUNK, JAZZ/FUSION • MIXING • ARRANGING • GUITARIST & MULTI-INSTRUMENTALIST • I primarily work with singer/songwriters who want to turn their songs into full band productions. Drums, Bass, Guitars, Pianos/Keyboards, Mandolin, Banjo, and a multitude of other instruments.
Achieve Your Dream Label Signing: With over a decade of experience, we’ve secured deals with top labels like Spinnin’, NCS, Hexagon, Revealed, Mixmash, and Smash The House. Backed by Industry Leaders such as: Hardwell, Afrojack, Timmy Trumpet, Nicky Romero, Don Diablo, Alok, Lucas & Steve. Your Success is Our Mission.
Recent Successes
"If you are looking for professional MIX and MASTERING Koen Heldens will do it the best. "
"Tyler did a phenomenal job demoing the songs I sent him. Very professional, punctual, and easy to work with! "
"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..."
"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! "
"Great guy, a lot of drive, willing to get the job done."
"Amazing mix engineer and co-producer. Simon was not afraid to share constructive criticism and really helped make the song the best it could be. He has many other musical services such as tracking and even had a sin..."
"I enjoyed working with FraMusic. He takes the project very seriously as if it was his own song. Nothing better than working with someone who you can trust with your project and who will deliver! He is very patient an..."
"Tom is a very skilled engineer who delivers professional and creative work. He managed to complete work as per requirements in a very short time with excellent results. Great communication also. Highly recommended!"
"Great Artist!"
"Amazing & Super talented .... extremely dedicated :) Thankyou so much "
"Thank you for the patience and professionalism you exhibited while mixing and mastering my songs...Juan is a great mix-master who put the time and effort in to please his clients...Give him a try, he is excellent..."
"Thanks Robert, this was a easy and good collaboration."












