The Intermezzo Flute Choir is a high-level intermediate flute ensemble geared towards preparing students for the senior EC Flute Ensemble. EC Flutes is a senior ensemble open to serious and advanced flutists.

The ECYS Percussion Ensemble is comprised of percussionists currently in the Sinfonietta, Wind Orchestra and Senior Symphony. The section meets separately from orchestra practice to rehearse and to prepare their programs with coaches.

ECWO musicians experience a wide breadth of repertoire, ranging from classical transcriptions to modern works just a few years old. As an advanced/intermediate orchestra, students are given thorough instruction on ensemble balance and intonation while experiencing a rigorous challenge of their technical skills.

Concerts tours, retreats, participation in music festivals and exchanges with other youth orchestras are a vital part of the ECYS experience, as well as guest soloists of international stature. The Sinfonietta Orchestra is an advanced level orchestra for middle and high school students. Sinfonietta students receive intensive training in preparation for membership in the ECYS Symphony. The orchestra performs original music chiefly from the classical period repertoire.

Concerts tours, retreats, participation in music festivals and exchanges with other youth orchestras are a vital part of the ECYS experience, as well as guest soloists of international stature. The award-winning Senior Symphony Orchestra is comprised of talented high school musicians from throughout the Bay Area. The orchestra studies under the baton of Dr.Camilla Kolchinsky, a conductor and master teacher who challenges the musicians to reach a high level of achievement.