Bluegrass music is a genre of American roots music that originated in the 1940s. It is characterized by its use of acoustic instruments, including the banjo, mandolin, fiddle, guitar, and bass. The style often features high-pitched vocals and intricate harmonies, drawing influences from Appalachian folk, blues, and jazz. The genre was popularized by musicians like Bill Monroe, who is often referred to as the "Father of Bluegrass." Bluegrass music typically emphasizes fast tempos and improvisation, making it a lively and engaging form of entertainment. It is commonly performed at festivals and gatherings, fostering a strong sense of community among fans.