Set the time signature of a project in Logic Pro for Mac
Each project has a time signature, which defines how musical time is divided into bars and beats. The time signature contains two numbers separated by a slash (/), which looks similar to a fraction. The first number controls the number of beats in each measure, and the second number controls the beat value (the length of the note that gets one beat).
You can set the time signature of the project in the LCD, the Signature List, or the Signature track. Changing the time signature does not affect project playback, but does determine the time grid in the Tracks area and MIDI editors.
The division value defines the duration of the division in all position displays (in the LCD and in the editors), and forms the basis of the grid for various length and placement operations. The division value is normally set to 1/16 notes, but can range in value from 1/4 to 1/192 notes. If the note value of the division is equal to or greater than the bar denominator, the third value of the position display is removed.
Tip: You can use the Set Next Higher/Lower Division key command to switch to the next highest or lowest division.
The tempo indicator in the LCD always relates to quarter notes, even if eighth notes are chosen as the denominator for the time signature.
When Enable Complete Features is selected in Logic Pro > Settings > Advanced, you can also add time signature changes using the Signature List or the Signature track. See Create time signature changes in Logic Pro for Mac.
Set the time signature
In Logic Pro, do one of the following:
Click the down-pointing arrow on the right side of the LCD and choose Beats & Project, then do one of the following:
Click the time signature, then choose a new time signature.
Click the time signature, choose Custom, then enter a new time signature.
In the Signature List:
Click and hold the time signature value, then drag up or down.
Double-click the time signature value, then enter a new value in the field.
Open the Signature track, then double-click the value shown. Set the Numerator and Denominator values (and other settings, if you like).
For more information about time signatures, see Logic Pro for Mac time and key signature overview.