Mixing & Mastering Engineers, Producers & Songwriters who worked with Juan Felipe Umaña
My name is Juan Sierra and I'm a Recording and Mixing engineer from Bogotá, Colombia. I have a BA in Music with Audio Engineering emphasis from Xavierian University and an MA of Music, Science and Technology from Stanford University. I also do audio software Development so I build unique plugins for my own Mixes.
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High quality analog and digital mixing
I'm a multi-faceted hand percussionist with a performance degree from Berklee College of Music and would love to work with you! My musical upbringing in American pop music combined with my education in folkloric traditions of Rhythm help take your music to the next level! Past performances with Michael McDonald, Annie Lennox, Willie Nelson, & more!
Am a sound engineer who is compassionate about good music, able to turn a song from bad to great with my arrangement skills, always shooting for that crystal clear mix
I am a Audio Engineer for all Genre’s. Also i am a vocalist/songwriter who makes music over all genre’s.
I serve the Music and I work to achieve the best it can be.
Growing up with a Caribbean background in addition to playing the organ, drums, and piano in church has definitely shaped my sound. From sound selection to the patterns in my music you'll hear different influences from jazz, gospel, Rnb, and trap all blended into one.
Producing 'EDM x Japanese Traditional Instrument(Koto, Shamisen, Shakuhachi)'. Receive your requests of recording Japanese Traditional Instrument and mixing, mastering.
Latín Grammy Winning / Emmy Nominee Songwriter - Arrangement - Production - Mixing
Recent Successes
"Out of all of the engineers, Wes was an OBVIOUS choice on the result of our single, "Control"!! My voice sounded crystal clear on every speaker we played!! (passed with flying colors) Even the samples we used in..."
"Reliable and "all in time making" person. Strongly recommend - Mix Master Mike."
"Robert Smith did a great job he mastered 10 songs mixed by 2 different people different levels I was very impressed with the results. He knows his stuff. "
"Great guy, great producer, eager to get the job done and make his clients happy."
"Excellent - did as asked. Recommended"
"Eric is an outstanding person to work with. DO NOT HESITATE TO GO WITH HIM. He will give you an affordable rate and work his butt off until you get the mix that you truly want. I could not have finished my EP without ..."
"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.. "
"Really enjoyed working with Ollie! Readily available and very reliable in delivering what you need!"
"I tried Leo on one song and he definitely came thru. I came back to him for the next song and once again he performed well. Most of all I like his people skills. It is easy to communicate with this man! "
"Eric was great to work with! He got to the job super fast and it sounded wonderful! I will be using him for my next mixing/mastering job for sure. You can hear the track here: http://aarongibson.bandcamp.com/track/sil..."
"Tyler did a phenomenal job demoing the songs I sent him. Very professional, punctual, and easy to work with! "
"This is my pride to work with this man and I will always recommend him to people who wanna make their sound better and better. "












