Mixing & Mastering Engineers, Producers & Songwriters who worked with Juan Castelli
I can make your purpose to sound in your song.
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I will make your song groove!
This is Phosforo!
Make your idea sound as it's in your own head.
Adding dreamy lead vocals, harmonies, and catchy writing to your project. I specialise in pop music, ranging from piano ballads to dance-pop. My sound is in the style of Billie Eilish, Imogen Heap, Lizzy McAlpine and Phoebe Bridgers.
🎧 Mixing & Mastering Engineer trained by the best – I studied with Maurizio Biancani and Marco Borsatti, two of Italy’s top sound engineers. 🔥 I deliver professional mixes and masters that highlight the unique character of every track, ready for digital platforms and international standards. 🎵 I provide professional productions across all genre
Radio-ready mixes with punch, clarity, and powerful low end – perfect for Spotify, clubs, and radio.
I help artists turn ideas into release-ready records with professional production and mixing.
Studio-quality stem separation and professional audio editing with precision and clarity. I’m a musician and music producer specialized in extracting vocals and instruments, creating detailed drum multi-tracks, identifying chords and lyrics, and adjusting key and BPM. Clean results, fast turnaround, and reliable communication.
Recent Successes
"Excellent - did as asked. Recommended"
"Fuseroom are professional/communicative/friendly. I gained new insights into refining my sound and was impressed with the warm/analog feel and dynamics that were added to my composition. I recommend business with them..."
"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..."
"Robert is an amazing mixer. He pays attention to details and listens to suggestions. He was extremely patient and dealt with the project in a professional manner. It was a pleasure working with him and I hope our path..."
"Andrew works quickly and communicates well to finish your job. He sent over test masters quickly and even gave me a couple of different ones, which went a long way in my decision to hire him. He did an excellent job,..."
"Gave me a clean, powerful and professional mix/master in a short amount of time! Would definitely recommend Big Bass Studios to anyone looking for a quality mix or master. Thanks for the good work!"
"I am very demanding of myself, I like a very well done, it takes a lot of discipline against me but also against people with whom I work. Working with Mike was a great experience. One of the things that I enjoyed a ..."
"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!"
"After Eric I won't look for another engineer. His mixes are beautiful and flawless. Not only are his skills exceptional but he is professional, polite, and prompt. Eric is also very willing to offer suggestions and..."
"Mike is one of the kindest and greatest guys I've been ever worked with. Perhaps it is not only worth mentioning his amazing musical skills, but also he had the disposition for giving advise on other topics. I had ..."
"Many thanks to Eric! It was very easy to communicate, despite my terrible english. I got exactly what I wanted. Very fast, very easy, very neat, very professional. I'd be happy to contact him again. A true master, sur..."
"Thank You JVH Productions for the great sound and quality on my song your mix gave the music lots of justice. Keep it Blazing"
