Orange County Millennial Choirs & Orchestras

(St. Mark Presbyterian Church in Newport Beach)

(Church of Christ at Mission Viejo)

Millennial Choirs & Orchestras was founded in 2007 with its inaugural locale, OCMCO. OCMCO’s next performance will be on December 11, 2015 at Segerstrom Center for the Arts.  Registration (for youth) and audition sign-ups (for adults) for fall 2015 is now open. Pending enough interest, south county youth rehearsals will begin on Wednesday, September 16th.


To gain a better understanding of MCO, please browse this website, particularly the About MCO section, including the Ensemble Overview and Participation Info pages. We also encourage you to listen to MCO’s four albums on iTunes, three of which landed in the top 3 of Billboard Magazine’s Traditional Classical Chart: To Be American; O Holy NightMessiah in America; and That Easter Morn.


MCO Participant Handbook


REGISTRATION:  Open registration is for youth ensembles (ages 4-18). No audition is necessary.  Click the link at the bottom of this page to register youth.

  • Full season registration and discount – now closed.
  • Regular registration pricing for 1st semester only – now through Monday at midnight after the first scheduled rehearsal after which prices increase by $20 per youth.
  • Final registration deadline – Monday at midnight after the second scheduled rehearsal

AUDITIONS:  The Grand Chorus (adults) and Symphony Orchestra are audition only.  Click the link at the bottom of this page to receive audition information and to sign up for an audition.


The new “Full-Season Discount” is the most affordable way to participate in the MCO Youth Choirs and Grand Chorus.  Information below:

Because of the requirement to participate all season if you wish to attend the D.C. tour, MCO has created the “Full-Season Discount” as a benefit to help you save on costs.

The Full-Season Discount requires you to participate for the entire season, September-April.

Full-season registrants will register once (this May) for the entire coming season. You will not have to re-register in December.

Full-season registrants have the option to pay for the entire season upfront; or make monthly payments over a period of 3 months (May-July), or over a period of 10 months (May-February).



    First Rehearsal Day: Thursday, September 17th

    Wednesday, September 16th at Church of Christ Mission Viejo – for South County Youth.

    Auditions for Grand Chorus & Orchestra: September 9th – 10th.

    Concert Run Through: December 10, 2015

    Concerts: December 11, 2015

    1st Semester runs from September through the concerts on December 11, 2015.

    2nd Semester runs from late January through the concerts on April 22, 2016.


Choral ensembles rehearse weekly on Thursdays throughout each semester. Details and times are below. The orchestra rehearses on a few select dates TBD. Pending enough interest, south county youth rehearsals will begin on Wednesday, September 16th.

3:45 – 4:30 pm          Young Singers Chorus          Age 4 by the first rehearsal of the semester through 1st Grade

4:20 – 5:30 pm          Children’s Chorus                 Grades 2 – 5 (homeschool at least age 7 by September 1)

5:10 – 6:30 pm          Youth Chorus                        Grades 6 – 8 (homeschool at least age 11 by September 1)

5:10 – 7:15 pm          Concert Choir Women           Grades 9 – 12 (homeschool at least age 14 by September 1)

6:15 – 7:15 pm          Concert Choir Men                Grades 9 – 12 (homeschool at least age 14 by September 1)

7:30 – 10:00 pm        Grand Chorus                       Accomplished adult singers 18 & over


Rehearsals will be held at:

St. Mark Presbyterian Church (North County Thursday Rehearsals)
2200 San Joaquin Hills Rd, Newport Beach, CA 92660

Church of Christ at Mission Viejo (South County Wednesday Rehearsals*)
26558 Marguerite Pkwy, Mission Viejo, CA 92692
*Pending interest in south county


Young Singers Chorus age 4 – 1st grade $125 Girls $30 Boys $30
Children’s Chorus 2nd – 5th grade $155 Girls $35 Boys $40
Youth Chorus 6th – 8th grade $185 Girls $60 Boys $45
Concert Choir Girls 9th – 12th grade $185 Girls $70
Concert Choir Boys 9th – 12th grade $155 Boys $95
Grand Chorus age 18 and up $50 Women $120 Men $110
Symphony Orchestra Accomplished Instrumentalists $0 Concert Black
(purchase on your own)

Scholarships are available for those with legitimate financial hardships.  Email for details.  Monthly payment plans are also available and can be arranged as part of the online registration process.


The D.C. tour will be an unprecedented experience and opportunity for MCO.  Here are the things participants need to know in order to start making plans:

Tour Dates: June 22-25, 2016

Which ensembles are invited?  Symphony Orchestra, Grand Chorus, Concert Choir, Youth Chorus, and Children’s Chorus from all 5 locales: Texas, Idaho, Utah, California, and Arizona.  We will include Young Singers Chorus if we see a very solid amount of Young Singers signed up to attend, but if it’s only a few, we will not include Young Singers Chorus on the tour performances and activities.

Sign-up: We will open up a “Tour Sign-Up” to begin assessing how many individuals are planning on attending in the choirs and orchestras from all locales.  Participants will receive an email about this in the coming weeks.

Travel/Accommodations: Each individual is responsible for his/her own travel and accommodations.

Hotel Group Rates: MCO is currently looking into group rates at select hotels.

Youth: All youth ages 4-18 will be accompanied by a parent/guardian.  MCO will not assume responsibility or guardianship for any participants, including minors.

Will there be a “youth tour group” like we’ve done in the past?  NO.  All youth must be accompanied by a parent/guardian, and each youth will be the sole responsibility of their parent/guardian.

Recording: We will be combining all 5 locales to professionally record MCO’s 5th album!  This album will be different than any of our past albums, and it will be a very special piece of sacred art.

Requirement: In order to participate in the D.C. tour, you must participate for both semesters, September – April.  Similarly to our Dallas tour and ACDA National performance, we will be incorporating tour music into our rehearsals beginning in September.  Those who join in January will not be able to join us on tour.  Those who choose to participate in semester 1, then skip semester 2, will not be able to join us on tour.  You must participate for the entire season (semesters 1 and 2) if you wish to join us on tour.


Why are OCMCO concerts held at Segerstrom Center for the Arts? - One of the trademarks of MCO is that we perform in state-of-the-art concert halls in our communities. Segerstrom Center for the Arts’ Renée and Henry Segerstrom Concert Hall is a world-class concert hall – one of the finest classical acoustic performance venues in the United States.

How does MCO maintain such a light schedule? - Another trademark of MCO is its ability to maintain a light rehearsal and performance schedule while at the same time achieve a professional level of education and produce top-notch performances. This allows busy individuals and families the experience of participating in a world-class choir and orchestra without consuming their lives. This is made possible by the highly effective rehearsals run by MCO’s musical directors, the massive team of volunteers working behind the scenes, and the thousands of participants who are devoted to MCO’s mission and purpose.

How did MCO grow so quickly in such a short period of time? - Now in five states (California, Arizona, Utah, Texas, and Idaho), MCO has 3000 participants and is growing steadily. There are three main reasons for this exciting growth: 1. Word of mouth; 2. A high quality, high energy, inspiring music program that changes lives for good; and 3. An expansive team of volunteers who clearly understand and support the great mission and purpose of MCO.

The general purpose of Millennial Choirs & Orchestras is to build and elevate the quality of classical and sacred music in the community. MCO’s music unites, heals, and inspires. This is already happening every week in Arizona, California, Utah, Texas, and Idaho, and the outcome is astounding! We welcome musicians of all faiths and backgrounds, and encourage the Orange County community to unite with us in creating an unprecedented music education and performance experience for people of all ages. We remain ever true to MCO’s important motto: All Ages. All Faiths. One Voice.