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338 Chapter 8 Global Tracks
Beat Mapping with MIDI Regions
Let’s take a look at the Beat Mapping procedure in the Arrange window. To test it, you’ll
need at least one MIDI Region that doesn’t fit the current tempo. Create one by
recording without a metronome click, if none are available.
In the upper part of the Beat Mapping track, you can see a ruler which contains a
graphical representation of musical bars, beats, and sub-divisions. These reflect the
Global Format value set in the Transport window (and also depend on the current zoom
level).
To allocate the notes to particular bar positions, proceed as follows:
1 Select the Region(s) that you want to use for Beat Mapping. Once the Region is
selected, short vertical lines will appear at the bottom margin of the Beat Mapping
track. They represent the notes in the selected Region(s).
2 Start from the left, at the first bar position that you want to assign to a MIDI
note: Click-hold at the exact, desired position in the Bar Ruler. A yellow vertical line will
appear.
3 With the mouse button still held, drag the cursor down towards the line that represents
the chosen note. A second, slightly darker, yellow line which is still connected to the
same position in the Bar Ruler will appear. This line will follow the movement of the
mouse cursor into the lower part of the track, forming an angle. Once this line is
connected to the desired note, release the mouse button.
4 Logic will insert an automatically calculated tempo change, which can be seen in the
Tempo track. This will ensure that the allocated note (and all other notes) will be played
back at the same absolute time position as before, despite their altered bar position(s).
5 Move from left to right, adjusting further events along the time axis, to obtain the best
Beat Mapping results.
6 If you make a mistake, you can erase any beat allocation by double-clicking on it, using
the Eraser tool or by selecting it and pressing Backspace. When using Backspace, be
careful not to erase other currently selected events or Regions by accident.
To erase all beat allocations, click anywhere in the Track List of the Beat Mapping track
(except on the buttons and menus) to select everything in the track, and press
Backspace.