What instrument is traditionally associated with bluegrass music?

The banjo is traditionally associated with bluegrass music largely because of its distinctive sound and rhythmic contribution. It is a foundational instrument in bluegrass ensembles, known for its bright, crisp tones and ability to provide both melodic lines and rhythmic drive. The playing technique often involves a style called "clawhammer" or "Scruggs-style picking," which adds to the energetic and lively feel characteristic of bluegrass music.

While the guitar, fiddle, and mandolin are also important in bluegrass, the banjo is particularly recognized for its unique character in this genre, often serving as a defining element of the bluegrass sound. It allows for intricate solos and participation in the ensemble's dynamic interplay, making it a staple in bluegrass performances and recordings.