10.6

64Logic Pro Instruments
• Logic pop-up menus and fields: Define a condition for multiple group rules, using
And, Or, and Not boolean statements. For example, set the first group rule to
Controller and Control 1 with a range of 50% to 100%. Set a second group rule to
Controller and Control 2 with a range of 50% to 100%. The different logic conditions
result in different outcomes.
• And: Both Control 1 and Control 2 must be set above 50% for the group to trigger.
With either control set below 50% the group does not trigger.
• Or: Either Control 1 or Control 2 must be set above 50% for the group to trigger.
The group does not trigger only when both controls are below 50%.
• Not: The group triggers when Control 1 is set above 50%, and Control 2 is set
below 50%. If both controls are set above or below 50%, the group does not
trigger.
Crossfade to a different group of samples on note-off
1. In Logic Pro, from the Name bar, click the File button and choose Initialize Preset from
the pop-up menu to reset all Alchemy parameters to default settings.
2. Switch to advanced view, and set the Release time for AHDSR1 to a suitable length for
your release samples.
3. Switch to one of the sources with the A/B/C/D buttons, then click the Edit button to
open the Main edit window.
4. Click the select field, and choose Import Audio.
5. Select a sample (or multiple samples) representing the main sustain portion of your
sound, and import using any of the available import modes.
Alchemy analyzes each sample to determine the root pitch (if not defined in the
filename), set the root key, key range, and velocity range for each sample zone such
that they span the entire keyboard and the entire dynamic range, and add all zones to a
group named Group 1.
6. Click the “+” symbol at the top of the Group section, and choose Import.
7. Select a sample (or multiple samples) representing the release portion of your sound,
and import (the import mode is automatically set to match the existing group).
Alchemy again analyzes each sample and adds all zones to a group named Group 2.
8. Double-click Group 2, then click the Trig field and change it to Release.
Zones in Group 2 will now trigger when you release each key, playing over zones in
Group 1 which continue to sound until AHDSR1 reaches the end of the release stage.
9. Double-click Group 1 in the list, then click the Fade field and change it to a value other
than 0.
Zones in Group 1 will now fade out when the note is released, allowing Group 2 to be
heard during the release stage of the sound. Higher Fade values result in slower fades.
10. As an option, double-click Group 2 in the list, then click the Fade field and change it to
a value other than 0.