classes:  lecturer. Practice rooms are hot, uncomfortable, the air conditioning system is malfunctioning, the door is also problematic.  curriculum. Practice rooms are hot, uncomfortable, the air conditioning system is malfunctioning, the door is also problematic.  facility. Practice rooms are hot, uncomfortable, the air conditioning system is malfunctioning, the door is also problematic.  general. Practice rooms are hot, uncomfortable, the air conditioning system is malfunctioning, the door is also problematic.