For that Christmas, we had two major blocks of presentations. One was the novenas for each assigned grade in the Elementary School; in my case, 4th, 5th, and 6th grades. The second was the Christmas concert held in the High School, which included performances prepared for the Elementary School novenas.
All the repertoire performed that day was practiced during regular classes and in extra rehearsal hours.
For SENSES, our internal arts festival, the music department team was in charge of the "Battle of the Bands," a musical concert where each grade presented a musical performance of their band. In the Elementary School, we organized a concert featuring music from different parts of the world, while in the High School, the choice of music was free. This event included groups from all grades, from Pre-School to 12th grade, and of course, Tempo 140, the school band.
All the repertoire performed that day was practiced during regular classes and in extra rehearsal hours.