Apple Logic Express 7 - Manual (Page 393)

Chapter 15 Score Editor 393
Reminder: if you want to record an additional Voice into an existing MIDI Region, select
the Region, and activate the Merge New Recording With Selected Sequence option in the
Song Settings > Recording Options. You could also record two separate Regions, using
different MIDI channels, and merge them later.
Mouse Input
Mouse input into polyphonic Score Styles is very easy, if you activate View > Explode
Polyphony (also available as a key command). This forces all Voices to be displayed in
separate staves, regardless of Score Style Staff settings (the other Voice parameters
remain valid). If you insert a note into one of these staves, it is automatically assigned
the corresponding MIDI channel. Following input, turn off the Explode Polyphony
option. This will display all voices correctly in one staff, as per the Score Style settings.
This mode is generally useful for all editing operations in polyphonic staves.
You can, of course, also insert notes directly into polyphonic staves without activating
the Explode Polyphony option. In this situation, inserted notes are assigned the MIDI
channel set in the Insert Defaults of the Event Parameter box (see “MIDI Channel and
Velocity of Inserted Objects” on page 345).
Single-Staff Score Style With Optional Polyphony
Sometimes you need to add a second Voice to a staff that usually only requires one
Voice, in order to properly notate a short, rhythmically-independent passage. This is not
uncommon with orchestral scores, where the unison part for a group of instruments
will temporarily separate from the other parts.
One solution is to use a Score Style with a “Main Voice” and a “Secondary Voice”. The
parameters for the Main Voice should be set as per a non-polyphonic Style. The
Secondary Voice is set to Channel 16, and is displayed without automatic rests:
• The stem, tie, and tuplet directions for the Main Voice are set to Auto, which is
necessary for the proper notation of unison parts. No MIDI channel is defined for the
Main Voice, so all notes with a channel other than 16 will be assigned to the Main
Voice. As long as no notes or rests with MIDI channel 16 are used, the score display
looks the same as with a simple, non-polyphonic Score Style.
• For the second Voice, the stem, tie, and tuplet direction parameters are set to down,
and the automatic rest display is deactivated (Hide). Only notes with channel 16 will
be assigned to this Voice.
The following additional steps are necessary to improve the score’s appearance:
• Rests in the second Voice need to be inserted manually where needed. In the
example, this was done on the fourth beat of the second measure. The rest’s MIDI
channel must match the second Voice’s channel (16, in this case). This can be edited
in the Event List (see “Using the Event List” on page 297).
• In the polyphonic passages, the stems of the Main Voice need to be forced upwards
by selecting the corresponding notes, and changing their individual stem parameters
(see “Note Attributes” on page 398).