txtDefinition=The two stacked numbers that are inserted at the beginning of a piece and each time the {\uldb meter}{\v 87357} changes. The top number indicates how many {\uldb beats}{\v 154397} there are per {\uldb measure}{\v 86617}, while the bottom number designates what kind of {\uldb note}{\v 89586} value receives each beat. In the {\uldb notation}{\v 5799} example below, the 3 indicates that there are 3 beats per measure, and the 4 indicates that a quarter note receives one beat.