10.6

Table Of Contents
123Logic Pro Instruments
Basic arpeggiator controls
All/A/B/C/D buttons: Choose the target source that is used to play the arpeggiator
pattern. See the tasks in Use the Logic Pro Alchemy arpeggiator.
When set to All, the arpeggiator pattern is played by all active sources.
You can restrict the arpeggiator pattern to a single target source by setting values
for one of the A, B, C, or D arpeggiators. The other three sources, if active, respond
to incoming MIDI data with no arpeggiation.
You can also activate and create different arpeggio patterns for any combination
of the A, B, C, or D arpeggiators. When you play the keyboard, each active source
is triggered by the corresponding active arpeggiator, resulting in up to four
simultaneous (but different) arpeggiated sources.
Note: Alchemy uses separate voices to play arpeggiated and non-arpeggiated output.
Therefore, this feature requires the Num(ber) of voices to be set to at least 2 in the
master voice section. See Logic Pro Alchemy master voice section.
Sync button: Turn on to synchronize the arpeggiator with the project tempo. See Rate
knob.
Key Trigger pop-up menu: Choose an option to align the arpeggiator and host
application grid values. Incoming and playing notes snap to this value when the host is
in play mode.
Choose a value other than Off to restart the arpeggiator pattern when the first note
is struck after a pause. This allows you to create pattern variations by playing chords
on different beats in the bar and may feel more responsive. Playing legato does not
retrigger the arpeggiator.
Choose Snap to Rate when you want to use a host application rate that differs from
available menu options.
Choose Cycle Reset to enable or disable. This option starts the arpeggiation from
the first note each time the pattern is repeated and when the host application is
started (at step 1). Cycle Reset is enabled by default, and turned off for all existing
presets for backwards compatibility.
Mode knob: Turn the arpeggiator on and off, and determine the order in which incoming
notes are organized into a pattern. In addition to Off, you have the following choices:
Up: Plays the current notes from lowest to highest.
Down: Plays the current notes from highest to lowest.
Up/Down: Plays the current notes from lowest to highest and back again.
Down/Up: Plays the current notes from highest to lowest and back again.
As Played: Plays the current notes in the order they were originally played.
Random: Plays the current notes in a random, non-repeating order.
Chord: Plays all held notes simultaneously as a chord. The chords are retriggered
and pulse in time with the arpeggiator rate and rhythm, as determined by the
arpeggiator sequencer settings. See Logic Pro Alchemy arpeggiator sequencer.
Note: Mode is a modulation target. This lets you set a Perform knob to modulate
Mode, enabling you to turn the arpeggiator on and off during a performance.