Cosima Ybarra

Cosima Y.

Moreno Valley, CA
100% Satisfaction Guarantee

100% Satisfaction Guarantee

Try the first lesson and if you’re not satisfied we'll refund any unused lessons.

Lesson Details


Levels Taught:
Beginner, Intermediate
Learn a method for great songwriting that effectively expresses your ideas and emotions. No need to understand music theory or write music notation. In this series you'll be equipped with a range of tools that revolve around the concept of using patterns of stress and intonation to coordinate lyrics and music that will carry and communicate your idea.
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Cosima teaches



Cosima passed a background check that includes a SSN verification, national criminal record check, and sex offender registry search. Learn More
Cosima delivers an exceptional lesson experience and ranks in the top 15% of our teachers nationwide.
Teaches students:
Ages 9+

Teaching since:
November 2010

My specialty is voice but I also teach acoustic guitar, ukulele and songwriting for the student who desires to develop their own style and create their own songs. Not only is it fun but the music education that comes with it is highly valuable for future musicians. (guitar and ukulele rentals available at an additional cost to the student)

For students who are just beginning their vocal journey or are busy performers who want to improve healthy technique and sing with more confidence; or perhaps a worship leader or backup singer is struggling with vocal strain, my goal is to help them find vocal freedom and maintain an amazing, healthy voice that will confidently meet their expectations, year after year, in every situation, every time.

As an active performing vocalist, musician, songwriter, and Christian worship artist and band leader, I understand the demands and challenges of a busy performance calendar, singing sets for back-to-back audiences day after day and week after week, and the need for a vocalist to find the vocal freedom that will produce confidence in their voice no matter what the venue.

The first steps to mastering vocal freedom are the building blocks for vocal success. Whether the student is a child or an adult, with little or no training, it is my goal to make singing an enjoyable and freeing experience.

Singing with complete vocal freedom and confidence can seem very elusive. Surprisingly, it's not as elusive as one might think! Vocal freedom is within reach and most students experience a measure of it within the few first lessons, some even gaining a full octave in their range in their first lessons. Using a systematic method incorporating the study of good vocal technique and working on songs the student loves to sing makes learning more fun and gives the student a greater appreciation of music as a whole while encouraging a passion for music that lasts a lifetime. I encourage and teach sight reading, and theory basics especially for those students who are considering music as a profession.

*** Lesson Details ***
Each student learns with material that will be divided into step-by-step doable lessons so they can be sure to learn the best techniques and material along the way. Sheet music and lesson books are provided at a minimal additional cost.

*** Studio Equipment ***
My home-studio is bright and open and set up with an upright piano, full length mirror, music stand, iPad with appropriate applications, guitar, mandolin, ukulele, and computer for recording and playback. Parents are welcome to sit in on lessons or wait for their children in the adjacent room. I also may provide a follow-up email which includes any recordings and lesson notes from the current lesson.

As the student progresses I also provide a PA system to teach mic technique and build performance confidence.

I ask that students come prepared with the following items to their lessons.
~ Bottled water
~ A ring binder with paper for notes and a zippered pouch to keep tools and handouts.
~ A flash drive for recording transfers or they can use their phone or other recording device to record their lessons.

*** Specialties ***
I honestly love my students and love teaching! It's such a privilege to be a part of their musical journey. I specialize in church worship vocals, choir, a capella, show tunes and musical theater. I teach free, healthy vocal technique which enables each student to explore and focus on different styles of singing. I also love teaching young voices especially teens who want to have a good time learning to sing.

NOTE ~ My teaching style is more structured therefore some young children may not be ready to take lessons with me.

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Associate Instructor
Nov 2015 - Present
Private company

Associate instructor of online live-chat lessons; vocal, guitar ukulele and songwriting.

Certified Music Instructor
Jun 2011 - Present
Rock University, Ca.

Associate vocal, guitar, ukulele and songwriting instructor and certified music instructor. Rock University Teachers Association, Escondido CA

Owner / instructor
Jun 2011 - Present
Home Studio

Private Home-Studio Owner: Voice, ukulele, guitar and songwriting.

Vocal workshops and conference clinician.

Customized clinics and workshops on location.

Director of Music Ministry
Nov 2000 - Present
Calvary Chapel Perris Valley

Organize, prepare and oversee technical and musical aspects of worship services and special events, plan worship sets and lead practice sessions. Lead band musicians and vocalists and give vocal instruction. Direct adult and children's choirs, and a cappella ensembles. Responsible for developing and raising up new musicians through conducting workshop, seminars and one-on-one instruction.

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Various Music Studies (private and institutional)
Sep 1971 - Present
Includes Berkeley College of Music
Music and Worship Arts Studies
Sep 2001 - Jun 2002
Calvary Chapel School of Worship


Fluent / Native Proficiency
Limited Proficiency


Contemporary Voice Teacher
Nov 2018
John Henny Academy

Certificate of Completion, Contemporary Voice Teacher Academy.
Successfully completed all coursework and testing in contemporary voice teacher training.

New Science of Singing
May 2018
John Henny Academy

Certificate of Completion, New Science of Singing.
Successfully completed all coursework and testing in the New Science of Singing Course.

Introduction to Music Production
Sep 2014
Berkley College of Music

Introduction to Music Production

Grade Achieved: 93.7%

Completed with Distinction on September 13th, 2014
6 weeks | 6-8 hours/week

Loudon Stearns
Berklee College of Music

Developing Musicianship
May 2014
Berkley College of Music

Grade Achieved: 100.0%

Completed on June 2nd, 2014

6 weeks | 4-5 hours/week

George W. Russell, Jr.

Certified Music Instructor
Jul 2011
Rock University, Escondido CA

Certificate of Achievement for Music Instruction. Rock University Teachers Association, Escondido CA

Photos & Videos

Comfortable in-home atmosphere.

Last month it was "Annie." Today Chloe sings RaeLynn, tomorrow Ariana Grande! Only 11 & super talented!
Vocal student, Mary, music video.
This short clip isn't the best quality nor is it mixed very well (listen closely for the Tenors and Basses). It was taken with a phone but despite the poor quality it represents some of the fun my students can have when they venture into singing SATB for the first time.  This little a cappella ensemble of 10 prepared for about 8 weeks to present at the 2012 Calvary Chapel Perris Valley Christmas Concert.  Enjoy and Sing On!
Competition winners

Stage performance

Performing Singer-Songwriter

A capella choirs and ensembles.

Worship Leader Vocals
+ 11 more

22 Reviews

Write a Review
John R. Nov 20, 2018
Singing · In home

Just finished my very first lesson with Cosima. I already learned so much. She really broke down that art of singing and made it very clear how the voice works. Then we did exercises afterwards which helped me know what I need to work on. Definitely need to check her out. She’s great!(:

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Malvina S. Aug 8, 2018
Singing · In studio

I had Cosima for a few months and I saw a change in my voice. Not only did she help me improve my voice but she was able to explain it in a way that I could understand the fundamentals of how singing happened. I had a song that I wanted to sing for my sisters wedding and if she didn't help I probably wouldn't have sang. I would like to say thank you to Cosima for helping me understand singing/vocal world. I was so new to it even though I have been singing from young age. She was able to help find my struggle in singing and we worked at it as much as possible to improve it. My chest voice and bridges definitely got better then what they were when I first started taking lessons with her. I have learned a lot and I have seen a difference in my voice. I'm really happy and blessed that I was able to have Cosima as my teacher. I greatly appreciate her teaching me. I recommend her as a great singing teacher.

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Kim T. Mar 7, 2018
Singing · In studio

Wonderful teacher.

Joseph Mar 3, 2018
Singing · In home

A good initial experience.

Marhnelle .. Feb 27, 2018
Singing · In home

Cosima was perfect. She gave me so much to consider in preparation of wanted to enhance my singing abilities. I am very pleased and I would highly recommend her! M

Kim Feb 2, 2018
Singing · In home

We love Mrs. Cosima. She is very nice, has good sense of humor, flexible, on time. My daughter has learned good singing techniques.

Tabitha A. Dec 7, 2017
Singing · In studio

This was the first lesson. There was a lot of education, but it seems important to understand the process. Looking forward to the next lesson.

Kali B. Oct 12, 2016
Singing · In studio

She made my daughter feel very comfortable. Looking forward to more classes.

Stephanie Apr 30, 2016
Vocal Training · In home

I have had my first few lessons with Cosima and she has been absolutely amazing. I am a beginner and she has made me feel comfortable throughout the entire process. Very professional, informative, and dedicated to her students. I look forward to more lessons with Cosima.

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Arthur R. Apr 5, 2016
Singing · In studio

Good singing teacher.

David S. Dec 4, 2015
Vocal Training · In studio

Very understanding, thoughtful, but does not waste time. Gets right to teaching techniques for your voice and your singing weaknesses. Also, takes her time to make sure you understand what she is saying and teaching. Efficient, effective, and fantastic. Cannot recommend enough.

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Lorene A. Jul 25, 2015
Singing · In home

My teenage daughter is a bit shy. When she started with Cosima she had a nice, but untrained voice. Cosima has done a lovely job helping her to refine her voice and gain confidence. I know Cosima's teaching helped my daughter get into her very competitive High School choir. Cosima is a gem.

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Sophia M. Jul 22, 2015
Singing · In home

First lesson, I liked how she started with explaining the different parts of singing. Chest, throat, nasal, and head. I think I am going to like this.

Gabriela R. Jul 18, 2015
Singing · In home

I am so glad that I had the privilege of meeting Cosima and having her as my singing instructor. Singing is something that I always loved and still do, so I was nervous to show my flaws, but Cosima was always very encouraging. She listened carefully and always tried to find a way to help me reach what ever goal we were working on. Even though I had so much trouble with my voice she never gave up on me, she always tried to figure out different exercises that would help me out. She always asked what she could do better as an instructor to help me reach my goal. One thing I loved receiving were my lesson notes, because I could look over them and remind myself on what I needed to work on. She is extremely understanding! And very patient! I miss my lessons with her! She is the most wonderful, down to earth person and is great at what she does!

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Doug D. Jul 17, 2015
Singing · In studio

I lost my singing voice after being hospitalized. Cosima has brought my voice back and beyond what it used to be. She has helped me overcome decades of poor singing habits. What a blessing.

Kirsten O. Jul 3, 2015
Singing · In home

Cosima is outstanding! My daughter loves her lessons is learning a lot! I recommend Cosima to anyone.

Anne D. Jun 8, 2015
Singing · In studio

Thank you Cosima. I feel much more confident singing in front of people. I loved your positive, supportive guidance and feel like you've taught me how to keep improving even though my schedule does not allow me to take lessons at the present.

Sandra T. Mar 6, 2014
Singing ·

I've gain so much with each lesson from Cosima

I have never taken one on one lessons but when I was blessed with the opportunity to join my church's worship group I knew that I wanted to seek professional help.
Take lessons lead me straight to Cosima. She knows what she's taking about and is very helpful when it comes to making sure I understand every area of singing. I am very shy about singing but with Cosima makes me feel comfortable and she gives me many reminders that its ok to mess up, at her studio we're allowed to make mistakes. Little by little I can see myself coming out of my shell and begin to gain the singing confidence I was missing.
I look forward to our lessons together. and will encourage any student out there that is looking for a professional but also a person who cares about your singing growth and ability, to take Cosima as your teacher. you wont regret it!!

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Mary S. Nov 4, 2013
Singing ·

Great Vocal Instruction, Great Teacher!

Cosima is professional & cares about her students progress! I had gave up on singing, she was my last attempt. My vocal ability has grown so much with her instruction. My passion for singing has grown even more since she has taught me how to sing and use my vocals properly. I have been making steady progress since the beginning. I look forward to our lessons, I love to sing! I feel that's its never too late to start singing, I believe she can help anyone become a singer! Thanks Cosima!

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sara M. Jun 21, 2013
Singing ·

Aweomse vocal lessons

Comsima is an excellent instructor. She is always giving me positive feed back and is always willing to work around my busy schedule. I'm blessed!!!!!

Kristopher M. Jun 18, 2013
Singing ·

Cosima is one of the most down to earth vocal coaches I have ever met, one who truly wants to see her students become the best they can be.

After overcoming my fear of singing in front of a crowd, I decided to join the worship team at my youth group. With this decision I also got the privilege of taking vocal lessons with Cosima. She immediately makes the environment comfortable and reassures the student that no one is perfect and mistakes happen to the best of us.
I cannot count how many times I have compared myself to other singers, and Cosima is always there to remind me that the voice I have is more than enough.
Cosima also establishes a friendship with each of her students. She came to my first big performance at my high school talent show, which was something that I will never forget because it showed me how much she cares.
Her instruction is easy to understand and always beneficial to the student. Yes, I even tackled those high notes that I would normally not even attempt.
I recommend Cosima to anyone who is not only looking for a vocal teacher, but for someone also looking for someone who wants to see you succeed and will be there for you every step of the way. I cannot thank Cosima enough because she has helped me become the more improved tenor I am today.

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Julie G. Jun 12, 2013
Singing ·

Cosima was there to help just when I needed it!

I was in town for only a few weeks to play a role in a musical production of the Book of Esther. Cosima was there to help just when I needed it! She took me as her vocal student at the last minute and helped me work out some weak areas and insecurities I was having with my voice.

Cosima is knowledgeable and able to see into your voice to help you get right to the issues you are dealing with. Her kind manner and energy helped me feel secure and ready to tackle those high notes and work on other weaknesses. When we were finished I felt as though I'd known her forever and my singing had improved greatly.

I'd recommend Cosima to anyone interested in getting over some vocal issues and to those who are just starting out.

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