Music classes are also outstanding at this school. Two buildings are dedicated to the study of music with many separate rooms for each musical category or instrument. The Sarasas ktra Symphonic Band has gained top prizes in various music competitions including winning the Thailand International Wind Ensemble Competition 2009 receiving a trophy from HM King Bhumibol Adulyadej and a Bt1 million cash prize. Sarasas Ektra students are classified into groups and will be in the same colour group from the first until the last day in school. The four colours are purple, green, yellow, and blue. These group are then used in sports competitions, camps, etc. The school runs an important volunteer camp for M.5 students to develop schools in upcountry areas. They have to organise, manage, and run the camp by themselves and even take part in fundraising activities "Music talents may raise funds by doing street performance. Art talents may use their skills in repainting the school. And academic talents may become volunteer teachers for the students at the schools we help," said Boom. "These activities help promote harmony among us.