This type of rhythm accents weak beats or parts of beats, instead of strong beats.
-tie
-syncopation
-pickup notes
-a tempo

The anacruse occurs when the music or the musical stretch does not start in the strong time, evidencing the weak beats or the parts of beats.

Explanation:

The Pickup notes occurs when the music or the musical stretch does not start in the strong time, evidencing the weak beats or the parts of beats.

Pickup notes, is the note or sequence of notes that precede the first strong tempo of the first measure of a song. Western musical notation style guides usually include the recommendation that when music begins with Pickup notes, the composer must remove a corresponding number of tempos from the last measure of the score to keep the number of measures of the piece by an integer.

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