txtDefinition=A {\uldb metric}{\v 87357} pattern in which each {\uldb measure}{\v 86617} contains {\uldb beats}{\v 154397} that are multiples of two (ONE-two/ONE-two, or ONE-two-three-four/ONE-two-three-four, etc.). The {\uldb finale}{\v 82354} of Mozart\'92s {\uldb quartet}{\v 154839} contains two well-marked beats per measure.