Screamo is a subgenre of post-hardcore music that emerged in the early 1990s. It is characterized by its intense emotional expression, combining melodic elements with aggressive vocals. The genre often features a mix of singing and screaming, allowing artists to convey deep feelings of pain, anger, and vulnerability. The instrumentation in screamo typically includes heavy guitar riffs, fast drumming, and dynamic shifts in tempo. Bands like Saetia and Orchid are considered pioneers of the genre, influencing many others. Screamo often explores themes of personal struggle, relationships, and existential angst, making it resonate with listeners seeking authenticity in music.