Logic Pro for Mac project properties overview

Each Logic Pro for Mac project has properties that include the project tempo, key and scale, time signature, and sample rate. You can set project properties when you create a project, and change them later while you’re working. Some project properties, such as tempo and sample rate, should be set when you create the project if possible, because they can affect recordings or media files you add to the project, creating extra work.

You can also set the project start and end points and set the overall project playback volume.