The Järvi Academy Youth Symphony Orchestra comprises of participants from the Järvi Academy string and wind courses. During the festival participants get to play together in the JAYSO and receive masterclasses from internationally renown teachers. The Järvi Academy Youth Symphony Orchestra is conducted by the participants of the Järvi Academy conducting masterclass participants. The masterclass is led by Paavo Järvi, Neeme Järvi, Kristjan Järvi and Leonid Grin.