The design sees the connection of three of classrooms, creating a long continuous space facing the backyard. Here we designed a timber wave structure that embraces the space, and gives movement to the old plain ceiling. This creates two different stages on the two opposite sides, one for small acoustic concerts and the main one for bigger events. This timber fragmentation of the space through wooden sticks works as an acoustic box and helps breaking the sound to give a better acoustic feeling (diffraction effect).