Apple Logic Pro 9 - Manual (Page 1026)

Creating Tempo Curves in the Tempo Track
To create a continuous transition between two tempi, click-hold and drag the tip of the
right angle line (the corner) above or below the second node.
A curve or diagonal line results (a Move Curve Node help tag is shown), which can be
dragged—horizontally or vertically—to alter the curve shape. You’ll find that this is quite
similar to drawing track automation curves with the mouse.
To make a tempo curve more, or less, precise
µ
Choose a value from the Resolution pop-up menu in the Tempo track to define the
number of tempo changes that are actually performed when using curves.
When set to 1/16, there are four tempo changes per quarter note; 1/1 only generates one
tempo change per bar, which will result in a coarser transition. A different resolution can
be defined for each node.
To delete a tempo curve
µ
Click the handling node (at the tip of the right angle) with the Eraser tool, or double-click
it with the Pointer tool.
Moving, Altering, and Copying Events in the Tempo Track
To move a tempo change event, grab the node (or the line to the right) and drag it left
or right.
To make finer tempo change movements
µ
Hold Shift while dragging a node left or right.
To move the selected tempo change event to the current playhead position
µ
Use the Pickup Clock (Move Event to Playhead Position) key command.
To move the selected tempo change event, replacing the previous one
µ
Control-click (or right-click) a node, then choose Extend Left from the shortcut menu.
This moves the selected tempo event left to the position of the previous tempo event,
which is replaced by the moved one.
Note: This menu item is dimmed for the first tempo event.
To change the value of a tempo change event
µ
Drag the node (or line) vertically. A help tag displays the tempo value.
1026 Chapter 33 Advanced Tempo Operations