Apple Logic Pro 9 - Manual (Page 1320)

grid The Logic Pro grid is represented by vertical lines that are used to indicate the
positions of measures, beats, and sub-beats in various editors.
GS Extended GM standard developed by Roland Inc.
Hand tool A tool used to move regions in the Arrange area or events in editors, or plug-ins
between Insert slots in the Mixer. It automatically appears when the mouse cursor is
placed over a region or event while the Pointer tool is selected.
headroom A specified range (safety margin, measured in decibels) between the actual
audio level and the maximum permitted level (0dBfs) that allows for unexpected signal
peaks.
help tag A small text window that appears when the mouse cursor is placed over an
interface element. It indicates the name or value of the element. When editing operations
such as moving or cutting a region are performed, a larger help tag will display the current
(and starting) position of the region or function—in real time.
hierarchical menu Structured menus that open cascading submenus when an individual
entry is chosen at a higher level.
Hierarchy button In the top-left corner of many Logic Pro windows, you will find a button
featuring an upward pointing, right-angled arrow. Clicking this Hierarchy button takes
you to the next, higher display level (one level up, in other words). As an example, if you
are looking at the events of a MIDI region inside a folder, clicking the Hierarchy button
will switch the display to a view of the MIDI region in the parent folder. A further click
will take you up to display the folder itself.
high cut filter A high cut filter is essentially a lowpass filter that offers no slope or
resonance controls. As the name suggests, it attenuates frequencies above the cutoff.
highpass filter A highpass filter allows frequencies above the cutoff frequency to pass.
A highpass filter that offers no slope or resonance controls is generally known as a low
cut filter.
Hyper Draw function This function allows you to record, manually create, and edit
controller data graphically. Hyper Draw data appears as a set of points (or nodes), which
are connected by lines. Hyper Draw can be used in the Arrange area and MIDI editors.
Hyper Editor Graphical editor that can be used to create or edit MIDI note and controller
data. The Hyper Editor is ideal for drawing drum parts and creating crescendi, amongst
other tasks. See entry below and also see event definition.
hyper set All simultaneously displayed event definitions in the Hyper Editor are collectively
referred to as a hyper set. Also see event definition.
icon Small graphic symbol. In Logic Pro, an icon may be assigned to each track.
1320 Glossary