Anacrusis

An anacrusis (from the Greek 'anakrousis', meaning 'a pushing back' or 'striking up') is one or more notes that precede the first full bar of a piece or phrase, commonly called a pickup or upbeat. Far from being a mere introductory gesture, the anacrusis creates forward momentum — it is the breath before the sentence, the swing before the strike. In piano performance, the anacrusis should lead naturally into the downbeat of the first complete bar; give it a lighter weight than the downbeat it anticipates, as if leaning into the music. Many famous melodies begin with an anacrusis (think of Beethoven's Fifth Symphony or 'Happy Birthday'), and recognising pickup notes is essential for counting correctly and entering at the right moment in ensemble playing.