Forward/Back: The loop section plays alternately in a forward/backward direction while a note is held and continues after the note is released.
Edit Mode pop-up menu and field: Choose one of three modes that determine how the MSEG responds to edits.
Normal: Only the selected point or points are moved. Non-selected points remain in their current positions.
Slide: Dragging the selected point or points also moves all subsequent envelope points, retaining the relative distance between points.
Stretch: Dragging the selected point or points to the left compresses earlier points and stretches later points. Dragging to the right stretches earlier points and compresses later points. In either case, the total length of the envelope is preserved.
MSEG display: Shows a graph of MSEG output, shown as points connected by lines.
Scroll bar and zoom controls: Drag the middle of the scroll bar to view envelope points that aren’t visible in the display area. Horizontally drag the zoom controls at either end of the scroll bar to resize the contents of the visible display area.
In Alchemy in Logic Pro, to add a point, click on or near a line at the required position in the MSEG display.
To remove a point, double-click it.
Note: Make sure the appropriate Snap Y option is active before creating points. Also be mindful of the Sync button state.
In Alchemy in Logic Pro, drag a point to the required position.
The x-axis value (time position) and y-axis value (level) are shown at the pointer position as you drag.
Note: Hold down Command while dragging a point to restrict movement to the horizontal or vertical axis, whichever movement is performed first.
To move several adjacent points together as a group, first drag to select multiple points, then drag any point in the group to the required position.
Note: Make sure the appropriate Edit Mode option is active before moving points. Also be mindful of the Sync button state.
In Alchemy in Logic Pro, you can adjust the curvature of each segment between points. Convex, linear, and concave envelope segments produce characteristically different effects.
Drag the line between points upward to make the segment progressively more convex.
Drag the line between points downward to make the segment progressively more concave.
Option-click the line to reset the segment to a linear slope.
Though this example is specific to pitch modulation, you can follow these steps to create a modulation routing for other parameters such as Pan or filter Cutoff.
In Alchemy in Logic Pro, click the File button in the Name bar and choose Initialize Preset from the pop-up menu to reset all Alchemy parameters to default settings.
In the master voice section, click the Coarse Tune knob, and assign MSEG 1 as its modulator.
In the modulation rack, set the MSEG 1 Depth control to 24 semitones.
If the MSEG control panel is not visible, click the MSEG button at the top of the modulation section.
From the Snap Y pop-up menu, choose 1/24.
Now an MSEG envelope can be used to control pitch in semitone increments, over a two-octave (a 24 semitone) range.
Download the guides:
Logic Pro User Guide: PDF
Logic Pro Effects: PDF