Strong beats are the first beat of each measure (in \(\begin{smallmatrix}2\\4\end{smallmatrix}\) and \(\begin{smallmatrix}3\\4\end{smallmatrix}\)) and beats 1 and 3 in \(\begin{smallmatrix}4\\4\end{smallmatrix}\). Syncopation at the beat level involves ties across those strong beats. Numbers in parentheses in the example below are beats that are obscured through syncopation.
Syncopation can also occur at the division of the beat level. Below are two syncopation figures that don’t show the beat but are acceptable because they are common and to write them out correctly involves more symbols (beamed eighths and ties) for the performer to comprehend.