The Hong Kong Youth Music Interflows is an annual inter-school event held in November and December. It facilitates mutual exchange among the Chinese orchestras, symphony orchestras, symphonic bands and string orchestras.

The Symphonic Band Interflow is arranged in six classes: Primary School Junior Class, Primary School Intermediate Class, Primary School Senior Class, Secondary School Junior Class, Secondary School Intermediate Class and Secondary School Senior Class. The Symphonic Band Extravaganza, featuring the top two Gold Award participating bands of each class, will give a remarkable finale to this interflow.