10.6

169Logic Pro Instruments
• You can play notes of different pitches or can use pitch bend to add a chopped and
screwed effect to your loops. The default pitch bend range is 2 semitones, but Alchemy
supports bi-directional pitch bends of up to 36 semitones. To set this, click the Global
view button and set the up and down pitch bend values independently in the master
section.
Modulate position with an MSEG in Alchemy
The MSEG envelope can duplicate the same kind of looping Ramp Up pattern used in the
LFO task but is capable of longer, more complex patterns than a simple repeating ramp.
MSEG envelopes are useful when you have specific ideas about how you want parameters
to change over time. MSEG modulators are capable of creating a range of patterns from
simple short ramps to very long, complex sequences.
1. In Logic Pro, click the Position knob, then click the button next to the modulation area to
disable the LFO.
Play a few notes and you will hear that the loop no longer plays forward.
2. Control-click the Position knob, and choose Add Modulation > MSEG Env > MSEG1 from
the shortcut menu.
This assigns MSEG 1 to control the Position knob. The central modulation section
automatically updates to display the controls for MSEG 1.
3. Click the File button in the MSEG editor, and load the Ramp Up preset.
This creates an 8 beat (2 bar) ramp from 0% to 100%. When you play a note, the result
is identical to that of the LFO modulation used in the previous task.
4. Click along the graph line in the MSEG editor to add three points near bars 5, 7, and 9.
Double-click a point to remove it.
Note: The exact position of each point in the MSEG is important for keeping a
consistent tempo.