10.6

96Logic Pro Instruments
5. Try adding another modulator to the rack in the slot beneath LFO 1.
Note: Up to ten different modulators of any type can be assigned to each control in a
preset.
Modify the basic modulation
In the preceding example, a tremolo effect is achieved by modulating the source A Vol knob
with LFO 1. This example expands on the basic modulation by modulating the LFO 1 Rate
with KeyFollow, which makes the tremolo effect faster when you play higher notes. You can
adapt this example to work with other modulator parameters, such as AHDSR Attack time.
1. In Logic Pro, Control-click the LFO 1 Rate knob, then choose Add Modulation > Note
Property > KeyFollow from the shortcut menu.
LFO 1 Rate is shown in the Target pop-up menu, and KeyFollow is listed in the first slot
of the modulation rack.
2. Play a variety of higher and lower notes to hear the effect of KeyFollow on the LFO Rate.
If this effect is too extreme, you can reduce the value of the Depth knob shown to the
right of the first slot in the modulation rack. See Logic Pro Alchemy modulation rack
controls.
Adjust the modulation intensity
Each modulator has its own Depth control, and each Depth control can itself be assigned
a modulator. A modulator can even be set to modulate its own depth. Up to five depth
modulators may be assigned to any modulation source. See Logic Pro Alchemy modulation
rack controls.
1. In Logic Pro, Control-click a Depth control in the modulation rack, then choose Show
Modulation from the shortcut menu.
The modulation rack updates to display the Depth control name in the Target pop-up
menu. For example, LFO 1 Rate Depth 1 indicates the first modulator of the Depth target
(which is modulating the LFO Rate 1 target).
2. Add one or more modulators to the rack.
Logic Pro Alchemy modulation rack controls
Modulation components are shown only in advanced view. Click the Advanced button to
switch to advanced view.
Normally, two things happen when you click a knob. First, the modulation rack associated
with the knob is displayed. Second, if a modulator has already been assigned to the first
slot in the newly displayed rack, the corresponding control panel is shown to the right.
Some modulators do not provide a control panel.
In two cases, however, Alchemy prevents these things from happening. If the knob you
click is on a modulator control panel (if you click LFO Rate or AHDSR Attack Time, for
example), Alchemy assumes you want to adjust the modulation of the current target
instead of switching to a new target. Similarly, if you click a modulation Depth knob in the
modulation rack, Alchemy assumes you want to adjust the depth, so the current rack view
is retained.