Cosima Ybarra

Cosima Y.

Moreno Valley, CA

About Cosima Y.

Background check: Last verified 05/05/2015
Cosima passed a background check on 05/05/2015 that included the following:
  • National Criminal Record Check
  • County/State Criminal Record Check
  • Sex Offender Registry Search
  • SSN Trace & Verification
For more information, please click here.
Cosima teaches: Ages 12 and up
Teaching since: November 2010
Last sign in: Yesterday


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

As an active performing vocalist, musician, songwriter, and worship 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.

*** Lesson Details ***
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.

*** 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 bottled water and a ring binder with zippered pouch for learning tools and handouts. Students are encouraged to bring a flash drive to lessons 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 voice! It's such a privilege to be a part of their vocal 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.

I also include the option of acoustic guitar or ukulele lessons as some students desire to learn to play along with a project song. Not only is it fun but the music education that comes with it is highly valuable for future musicians. (rentals available at an additional cost to the student)

Any student that prefers to learn only worship guitar or beginning ukulele is welcome too! I'd love to hear from you and set up a lesson.

Photos and Videos

Vocal student, Mary, music video.


Certified Music Instructor

Jun 2011 - Present
Rock University, Ca.

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

Owner / instructor

Jun 2011 - Present
Home Studio

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

Vocal workshops and conference clinician.

Clinics and workshops at your 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.


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

Languages Spoken


Fluent / Native Proficiency


Limited Proficiency


Introduction to Music Production

Sep 2014
Berkley College of Music

Introduction to Music Production

Grade Achieved: 93.7%

Completed with Distinction by Cosima JoAnna Ybarra 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 by Cosima JoAnna Ybarra on June 2nd, 2014

6 weeks | 4-5 hours/week

George W. Russell, Jr.

Certified Music Instructor

Jul 2011
Rock University, Escondido CA

Associate music instructor and certified music instructor. Rock University Teachers Association, Escondido CA

Write a Review

11 Reviews on Cosima Y.

Lorene A. Jul 25, 2015
Singing · In home
Verified Student
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.
Sophia M. Jul 22, 2015
Singing · In home
Verified Student
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!
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
Verified Student
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
Verified Student
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
Verified Student
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!!
Mary S. Nov 4, 2013
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!
sara M. Jun 21, 2013
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
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.