backbeat
Backbeat is a musical term describing the emphasis given to the normally weaker beats in a regular meter, most often beats 2 and 4 in a 4/4 groove. On a standard drum kit, this emphasis is typically produced by the snare drum (and sometimes by rimshots), while the bass drum and cymbals provide the underlying pulse. The resulting rhythm is a driving contrast that helps propel the music forward.
Origin and development: The backbeat appears in early jazz and blues ensembles, where rhythm sections began
Notation and technique: In written music, backbeat is not a separate symbol but realized through the pattern
Impact: The backbeat shapes many popular genres and is closely associated with the energetic, danceable feel