Acid House is a genre of electronic dance music that emerged in the mid-1980s, characterized by its repetitive beats and distinctive use of the Roland TB-303 bass synthesizer. The genre is often associated with the Chicago house scene and is known for its psychedelic sound, which incorporates elements of acid and trance music. Acid House parties became popular in the UK, influencing the rave culture of the late 1980s and early 1990s. The visual aesthetic of Acid House often features bright colors and surreal imagery, reflecting the genre's connection to the psychedelic experience. Acid House culture is also linked to the use of ecstasy and other party drugs, which were prevalent at raves. The genre has had a lasting impact on electronic music, influencing various styles and artists over the years.