Mixing & Mastering Engineers, Producers & Songwriters who worked with Katja Werker
I am a record producer, recording and mixing engineer with more than 25 years experience around US, UK and Eu with artists and bands crossing several genres, mostly indie pop, pop/rock, alternative, singer-songwriter, acoustic and jazz. I am based in Vienna and Italy and work extensively online, travelling to Us/Can and UK.
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Giosuè Greco is a producer and audio engineer. Recently graduated from Berklee College of Music in Music Production and Engineering he is currently involved in many project as freelance producer and mixing engineer.
Jon Gilbert is a versatile 21st century engineer. He has 17 years experience in audio production, studio engineering, mixing, producing, and live touring sound reinforcement.
I am a multi-instrumentalist, producer & mix engineer from San Antonio, TX. I have been recording my own music for 7+ years, specializing in drums, guitar, bass, MIDI sequencing, and mixing.
Professional Singer for hire on demo's, band recording, and vocal support. Expert in harmony, melody writing, and singing with alot of power.
Dreamy Harmonies and Catchy Melodies - over 250k+ Spotify streams
I have a battle-tested tenor singing voice that often draws comparisons to Patrick Stump and Brendan Urie. Multi-octave range, excellent power and control, and highly expressive.
I’m a mixing and mastering engineer, specializing in Pop, Rock, R&B, and Indie.
Hey everyone! I'm a Nashville-based Billboard charting Producer/Songwriter who has worked with Justin Bieber, Tori Kelly, Pink Sweat$, Alex Isley and more.
Recent Successes
"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!"
"Great job. Ricardo went all the way to make sure we were 100% satisfied. The end results is great!"
"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..."
"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've worked with several mix engineers but Sefi really stands out from the crowd and... will make your music better too!"
"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..."
"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..."
"Good to work with and great communication."
"very hard working team, attention to detail, skills and passion, I ended up with a very nice song unique production as I wished - Geeva"
"Had Graham master the tracks for my album. He was super professional, had great communication and was prompt on delivering the mastered tracks. On top of all that his work was great, took all my tracks to the next lev..."
"Excellent studio for mixing and master, very personal follow-up with nice ideas and taste. By far my best sounding track."
"I was very satisfied with Paul. He is very trustworthy. I will work with him again!"












