Now Registering for the 51st Season

Accepting auditions for most sections.  Join us for another year of musical celebrations.  Visit Third Street Music School for more information.

Learn more


Now registering for the 2021-2022 Season!


Welcome to the 50th Anniversary of the Interschool Orchestras of New York! We invite you to become a member of one of the most prestigious and historic youth orchestras in the entire country. Alumni of ISO are members of some of the greatest orchestras in the world and you could follow in their footsteps.

Our 2020-2021 season was nothing like we’d imagined it would be, but we have managed to continue having our students make music, learn from world-renowned musicians, and for the first time ever we will present our one-of-a-kind collaboration with the Mingus Dynasty at the League of American Orchestras National Conference in June. This is the first time that ISO will be featured on the national stage and we couldn’t be more excited for the opportunity.

For 2021-2022, our 50th season, we will be celebrating the lives of the two people who shaped ISO into what it is today - our founder, Annabelle Prager, and our Music Director Emeritus, Jonathan Strasser. Many of our plans are still in motion, but we have some wonderful repertoire to play on numerous concerts planned for the year, including a year-end performance of Elgar’s Enigma Variations in its entirety. In addition to that, we are exploring opportunities for world premieres, exciting collaborations, major concert halls, the continuation of our groundbreaking mentor program, and an entirely new series of masterclasses. Of course, the plan is that we will be live and safely in person come September, which will be a long time coming for all of us.

Registration continues throughout the spring until sections are full. ISO’s goal is to make it possible for every interested young musician to be able to participate in an ensemble, regardless of ability to pay tuition. Financial aid is based on need, and half of our students receive some level of aid.  New families can apply for financial aid and our Student Services team is here to assist. We hope that you share our excitement for the 50th anniversary celebration and we look forward to seeing you soon!


Barry Stern
Musical Director, ISO at Third Programs
[email protected]


New York, September 29, 2020 – Third Street Music School Settlement today announces that InterSchool Orchestras of New York (ISO) will come under its umbrella to form the largest and most expansive youth ensemble program in New York City.

With a combined 175 years of experience in music education, this partnership galvanizes the missions of both organizations to ensure access to high-quality instruction for students from all five boroughs at a time when many music programs are closed because of the pandemic.

Third Street will now offer a total of six orchestras for hundreds of students ages 8 to 18. This new orchestra program will offer generous financial assistance to students who otherwise would be unable to afford orchestral study and performance experiences.

“We are so pleased to welcome the ISO families, students and faculty to the Third Street community,” said Valerie G. Lewis, the Anna-Maria Kellen Executive Director. “Third Street and ISO were founded to connect young people to the music education they deserve and introduce them to the joys of group music making. During this challenging time, student ensembles play a critical role in helping children and teens avoid social isolation.”

The partnership will allow ISO’s orchestras to continue to flourish with the administrative and professional support of Third Street. The three additional orchestras will be called ISO at Third Street. The acquisition is expected to be completed by January. Third Street will immediately assume primary responsibility for the operation of the ISO program, with completion of ISO’s transfer expected to be completed following receipt of required government approvals later this year.

“We are so excited to affiliate with an enduring and respected organization like Third Street and benefit from its deep bench of artistic resources,” said Barbara Tracy, ISO Board President. “Our missions to reach disadvantaged students with the highest caliber of instruction are perfectly matched.”

In March when the pandemic forced public schools to close, Third Street and ISO quickly pivoted to virtual instruction for all programs and they continue online this fall. Third Street anticipates that in-person rehearsals will return slowly in the new year.

Arts education pioneer Emile Wagner founded Third Street in 1894 as the country’s first community music school. It has been guided by the dual goals of providing top-notch education and making sure disadvantaged communities and students of all ages and abilities have access to it. Third Street’s illustrious alums include songwriter, and EGOT winner Bobby Lopez, composer Jessie Montgomery and music director Ray Chew. The school’s ensembles have been showcased at many New York City venues, including Carnegie Hall, Symphony Space, Steinway Hall and Le Poisson Rouge.

Over five decades ISO’s youth orchestras have built a reputation for excellence. Founded by Annabelle Prager in 1972 because her son’s school didn’t offer ensemble music instruction, ISO attracts top students from all around the city. Its graded orchestras, led by experienced musicians with a passion for teaching, provide students a path to advance from beginner to virtuoso. The youth orchestras have delighted audiences in Carnegie Hall, Lincoln Center, Central Park and on tours of Europe and Latin America. ISO’s luminary alums include James Gaffigan, Chief Conductor, Lucerne Symphony, Switzerland and Tito Muñoz, Music Director, Opéra national de Lorraine & Orchestre symphonique et lyrique de Nancy, France.

All students are required to audition to determine skill level and placement into the appropriate orchestra. To schedule an audition, email Ivan Antonov at [email protected] or call 212-777-3240.

About Third Street Music School Settlement
Third Street, which was founded 125 years ago to provide music instruction to immigrants and their children, is the nation’s longest-running community music school. Third Street enriches the lives of young students and adults by providing access to high-quality music and dance instruction regardless of their ability to pay. The school serves thousands of students each year in its primary location on East 11th Street in Manhattan and through partnerships with public schools.

About InterSchool Orchestras of New York
ISO began five decades ago with a single orchestra of 20 children. Today, ISO serves nearly 300, creating opportunities for school-aged children in New York City to make music together through tiered-level orchestras. The ensembles perform in major concert halls, schools and community centers, bringing great music to over 7,000 people annually.


If you would like more information about this topic please contact, Kristen Kentner, Director of Marketing & Communications, Third Street Music School, 917-213-9208, [email protected]

ISO Presents Philharmonster Concert for Halloween


Young musicians from all over New York City under the baton of conductors Steven Rochen and Dr. Matthew Rotjan, and special guest Renee Manning, will come together to present this spooky and spine-tingling performance. This Halloween themed community concert will feature some of New York’s up and coming musical talent, ages ranging from elementary school through high school. The program will include works by Bernofsky, Hughes, Tang, Wagner, Bishop, and Meyer for an hour-long concert. Costumes are highly encouraged. Be sure to bring your Trick or Treat bag for lots of free candy! Admission to the concert is 100% FREE.

DATE: Wednesday, October 30, 2019

TIME: 5:00 p.m. to 6:00 p.m.

LOCATION: St. Paul & St. Andrew United Methodist Church, 263 W 86th Street, New York, NY

Philharmonster Press Release  

Morningside Orchestra Bowling Party

Important Information: Tuesday May 21st, 2019 4:00pm – 6:00pm Frames Bowling Lounge 550 9th Ave New York, NY   There will be a check in table when you arrive. Food will be served by the venue during our time (approx. 20 minutes into the party). Please remember to bring socks as you do not want to be wearing bowling shoes without socks! Please note the venue dress code: “We ask that all guests refrain from wearing tank tops, sweatpants, construction boots, tracksuits, or flip flops.” We look forward to a wonderful party to celebrate the end of the season and a successful Playathon!


The Concert Orchestra Community Concert is on May 2nd. This concert is at the same time as our regularly scheduled rehearsal. Please note the information below: May 2nd, 2019 4:30pm – 5:30pm Sirovich Center for Balanced Living 331 E 12th St, New York, NY 10003 4:45pm – 5:00pm – Students arrive 5:15pm – 6:00pm – Dress Rehearsal 6:00pm – 6:45pm – Performance


The Morningside Orchestra Community Concert is on April 30th, 2019 This concert is at the same time as our regularly scheduled rehearsal.  Please note the information below: April 30th, 2019 4:30pm – 5:30pm Terence Cardinal Cooke Harlem Nursing Home 1249 Fifth Avenue, New York, NY 10029 4:30pm – 4:45pm              Students Arrive to Venue 5:00pm – 5:30pm              Performance DRESS CODE: Black & White – Same as Symphony Space Performance


The Carnegie Hill Community Concert is this Wednesday. This concert is at the same time as our regularly scheduled rehearsal.  Please note the information below: April 17th, 2019 4:30pm – 5:30pm Terence Cardinal Cooke Harlem Nursing Home 1249 Fifth Avenue, New York, NY 10029 4:30pm – 4:45pm              Students Arrive to Venue 5:00pm – 5:30pm              Performance DRESS CODE: Black & White – Same as Symphony Space Performance

ISO Women’s Composers Concert

InterSchool Orchestras(ISO) Women Composers Concert at Hewitt Theater St. Jean, 150 East 76thStreet, New York, NY 10021 will be on Wednesday February 13that 6:30 PM. The ISO Symphony Orchestra will present a concert dedicated to three outstanding women composers. The program includes Michi for Solo Marimba by world renowned Japanese composer and percussionist Keiko Abe; Flute Concertino, Op. 107, by French romanticist Cecile Chaminade; and first movement of the grand Piano Concerto, Op. 45, by one of the most brilliant American composers and pianists, Amy Beach. ISO musician Isabel Guerrero will solo in the Abe. Soloist Mika Sasaki will also join the ISO Symphony Orchestra and perform in the Beach Piano Concerto. Composer Keiko Abe Born in 1937 in Tokyo, Keiko Abe is the author of more than 70 compositions for percussion, and her contribution to developing the marimba as a solo instrument is unmatched. Abe’s collaboration with the Yamaha Corporation in the 1960s resulted in expanding the marimba range to five octaves, as well as improving the design and sound quality of this instrument. Composer Cecile Chaminade  (1857 – 1944) Chaminade is the author of more than 400 works. Her musical talent was recognized by George Bizet at the age of 8.   After her Carnegie Hall recital in 1908, the New York Evening Postran a piece stating: “Chaminade’s concert confirmed the conviction held by many that while women may someday vote, they will never learn to compose anything worthwhile.All of them seem superficial when they write music.” This is an example of the unjust and discriminatory fate of female artists in a male-dominated world. Composer Amy Beach (1867 – 1944) Beach completed her first compositions at the age of four and in her teens was already an established concert pianist and made her debut with the Boston Symphony. This bright career was delayed for decades by one condition in Beach’s marriage agreement: she was not allowed to play more than two concerts a year and was forced to give up teaching. As a result, Beach focused all her efforts on composing, and this gave birth to one of the most colorful and masterful pieces of American romantic music such as Mass in E flat Major, Gaelic Symphony, Piano Quintet, and Piano Concerto.