Apple Logic Pro X - Manual (Page 581)

Chapter 19 Make global changes to a project 581
Work with tempo
Tempo overview
Every project has a tempo, which is expressed in beats per minute (bpm). You can set the tempo
in the Project Chooser when you create a project, and change it later while you are working. You
can set the project tempo in the LCD in the control bar. By default, the tempo for new projects is
120 bpm.
When Show Advanced Tools is selected in the Advanced preferences pane, you can add
tempo changes, and control the tempo of a Logic Pro project in a variety of ways, including:
•
Create tempo changes using the Tempo track, the Tempo List, or Beat Detection
•
Match audio recordings to the project tempo, or match the tempo to an audio region
•
Record tempo changes in Logic Pro
When Advanced Editing options is selected in the Advanced preferences pane, you can
use the Tempo Operations window and Tempo Interpreter window for more complex control of
the project tempo. When Advanced MIDI Options is selected, you can control tempo changes
using the tempo fader in the Environment.
Create tempo changes with the Tempo track
Tempo track overview
When Show Advanced Tools is selected in the Advanced preferences pane, you can add and
edit tempo changes in the Tempo track. The Tempo track is available in the Tracks area, Piano Roll
Editor, Step Editor, and Score Editor.
In the Tempo track, tempo changes are represented by tempo control points. You create tempo
changes by adding control points and editing their values. You can expand the Tempo track to
give yourself more room to work, and adjust the range of values for the Tempo track.
The Tempo track also determines the relationship between incoming timecode and the current
playhead position, for projects using timecode.
Because Beat Mapping can create changes in the Tempo track, altering existing tempo changes
or creating new tempo changes, you should avoid making changes in the Tempo track after
using Beat Mapping functions. Doing so will defeat the timing derived from the Beat Mapping
functions. For more information about the Beat Mapping track, see
Beat mapping overview on
page 601.