Mixing & Mastering Engineers, Producers & Songwriters who worked with German Garmendia
I am a Music Producer and Mastering Engineer based in London. I have a distribution agreement with AWAL/Kobalt (The Weeknd, Marshmello, Paul McCartney), my musical projects have generated over 10 million streams and downloads worldwide in and have been supported by artists such as Martin Garrix and radio such as BBC Radio 1 and BBC Radio 1Xtra.
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Hi, I'm Sandro, a french independant sound engineer and musician from Paris. My goal? Serve your music and give it the power, punch and clarity that will impact your listeners, driving them into true fans of your art.
Hi, I'm Johnny Connolly: An Irish composer who is London-based with 35 years' experience in music and TV. Credits include high-profile Irish TV series and a Globally syndictaed childrens TV show. A skilled guitarist, blending diverse melodies into captivating narratives. Soulful, innovative, music transcending borders.
Sync-focused producer blending street soul and cinematic grit from Dipset-style samples to Afrobeat heartbreak.
Original accordion music for ensembles, film & more
bring emotions to life through powerful, original lyrics that connect deeply with audiences — from love songs to street anthems.”*
Classically trained, genre-fluid cellist & string arranger delivering expressive, studio-quality recordings. From solo lines to lush string sections, I craft emotionally rich parts for pop, folk, film, & more. Fast turnaround, pro sound, and arrangements that elevate your music.
Professional and experienced backing vocalist & voiceover artist with over 20 years of experience. I deliver polished and versatile vocals that elevate any project.
I help artists bring their vocals to life with expert editing — from comping and alignment to pitch correction and noise cleanup of lead vocals and BGVs, all the way to mixing the vocals with the provided backing track. I currently collaborate with jw.org, the most translated website in the world, editing and mixing vocals in Indigenous languages.
Recent Successes
"Absolutely amazing singer, total pro, vocals recorded perfectly and quickly. Total gent too!"
"Andrew did an amazing job with my tracks. He helped me through the entire process, arranging, recording, mixing, mastering, and was excellent at each part. He is very knowledgeable and has great artistic talent and ..."
"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..."
"Really enjoyed working with Ollie! Readily available and very reliable in delivering what you need!"
"Andrew has a ear for music and sounds.. I am super picky with my art/music.. he made the track sound better than I could imagine.. I will 100% work with Andrew again.. "
"highly recommended. very skilled, creative, and good attention to detail. quick turnaround. professional. "
"Thanks Robert, this was a easy and good collaboration."
"This is the great job made by Sefi on my new song WALKING DEAD: https://www.youtube.com/watch?v=ojAWZdkO2bE You know what? I will have remix some of my previous songs too... he's so good!!! "
"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..."
"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!"
"Awesome work."
"Tyler did a phenomenal job demoing the songs I sent him. Very professional, punctual, and easy to work with! "












