Kegalu Vidyalaya Senior Western Brass Band was commenced in 2005. It was founded by Mr.Jayantha Dissanayaka. Till 2005 there were western bands by using melodicas and flutes.
At present Kegalu Vidyalaya western band famous among school and also Sri Lanka.As a result of hardship of the members western band has got many achievements.Also present western band plays items for the ceremonies which held in the school. Also it has welcomed the St. Kitts and Neville glamorously in the CHOGM.Now there are 3 western bands as Primary, Junior and Senior in school. They are conducted by Mrs.Nisansala Jayathilaka and Mrs.Neranji Dissanayaka.