Logic Pro X: Use the metronome
https://support.apple.com/kb/PH26320?locale=en_US&viewlocale=en_US
Set the number of bars for the count-in
Do one of the following
Choose Record > Count-in, then choose the number of bars from the submenu.
In Project Settings > Recording, choose the number of bars from the Count-in pop-up menu.
Set the number of bars for the count-in
Do one of the following
-
Choose Record > Count-in, then choose the number of bars from the submenu.
-
In Project Settings > Recording, choose the number of bars from the Count-in pop-up menu.