Post-rock is a music genre that emerged in the 1990s, characterized by its use of rock instrumentation to create expansive soundscapes. Unlike traditional rock, post-rock often emphasizes atmosphere and texture over conventional song structures, featuring long instrumental pieces that may include elements from various genres, such as ambient, electronic, and classical music. Artists in the post-rock genre, such as Explosions in the Sky and Sigur Rós, often utilize dynamic shifts and layered sounds to evoke emotions and create immersive listening experiences. The genre is known for its cinematic quality, making it popular for use in film soundtracks and other visual media.