In addition to performances with the opera, HYOC has developed its own diverse repertoire which ranges from classical, spiritual, secular, and Hawaiian music.
It has also recently introduced a special rehearsal for the male voices of the organization, in an attempt to draw more interest towards boys.
The 2006 season operas Il Trittico (Suor Angelica) and Tosca featured children from HYOC's Cantilena and Scelto ensembles.
HYOC started out as a single ensemble, but as its attendance grew it continued to add additional choirs.
Gioventù Musicale was created when the age range of the organisation expanded to include youth rather than just children.