Big room house

Big room house is a house music subgenre. It takes the melodic and progressive nature of progressive house and combines it with the energy of electro house. It is characterized by emotional breakdowns with long build-ups followed by an energetic drop. Instead of electro house, big room house’s drops are melodic. 
Origins.
Big room house was born in the 2000s as an evolution of progressive house. It found a growing mainstream attention since 2010, also thanks to the spread through international music festivals such as Tomorrowland and Ultra Music Festival.