Apple Logic Pro 8 - Manual (Page 786)

786 Chapter 33 Working With Notation
 Bass String buttons: Click to determine the display of the lowest string. It may be the
same as other strings, or slightly thicker.
 Circle 1/1, 1/2 Notes checkbox: If this option is activated, half and whole notes will be
displayed with a circle around the fret number. As the note head is always a number,
there would be no visible difference between a half note and a quarter note, if this
parameter wasn’t available.
Determining the Assign Method
As most notes can be played at different positions (frets) on different strings, the Assign
parameter performs an essential role. In most cases, the MIDI channels of the individual
notes determine the string assignment.
Note: The MIDI channel parameter of an individual note has no impact on MIDI
playback. The playback channel is determined in the track instrument’s Parameter box
in the Arrange window.
Click in the Assign column (for the corresponding Tuning Set), and choose from the
following string assignment options:
Pitch
Logic Pro assigns each note to the string on which it is playable, at the lowest possible
position. In order to influence the string assignment, there is a rule (in Pitch mode only)
that a note’s fret position cannot be lower than its MIDI channel.
This method is generally used when notes are recorded from a MIDI keyboard:
 An A3 (on MIDI channel 1) is displayed on the second fret of the G string. If you want
the note to be displayed at a higher position (to correctly display the proper
fingering of a passage), you need to set its channel to 3 or higher.
 This means that the fret position cannot be lower than 3, so the note will be
displayed at the D string’s seventh fret.
 If the channel is between 8 and 12, the A3 is assigned to the A string on the 12th fret,
and to the low E string (17th fret) for channels 13 to 16.
If you want to force even higher positions, you’ll need to use one of the other
assignment modes.
Channel
In this mode, the number of the string (1 to 6, counted from the lowest string) simply
corresponds to the MIDI channel. Channels 7 to 16 are assigned to the highest string.
Inv. Channel
Like Channel, but counted from the highest string (1) to the lowest (6 and above). This
way of numbering the strings is generally used in traditional guitar literature.