Apple Logic Pro 9 - Manual (Page 474)

When you are creating a system for these key command assignments, consider the
following approaches:
• Lay out these commands on the computer keyboard to resemble a piano keyboard (C
D E F G A B in one row, next to each other, and C# D# F# G# A# above these at
corresponding positions).
• Assign alphabetical keys to pitches of the C major scale—in accordance with their note
names—especially when you are defining key commands for only the 7 pitches of the
C major scale as discussed above.
Octave Range Key Commands
The octave of an inserted note depends on the current position of the insert range bar.
There is a small horizontal bar that spans one octave above the piano keyboard in the
Step Input Keyboard. The chosen note will always be inserted inside the range indicated
by this bar.
This bar continuously changes its position in accordance with the last inserted note: The
center of the insert range bar is always aligned with the last inserted note. The next note
is inserted within this octave range—unless the range bar is moved with key commands
or with the mouse.
For example, if you insert a G immediately after inserting a C, the G will be placed below
the C. Inserting the C places the insert range bar between G (the left end) and F# (the
right end), with the C in the center. Regardless of which note you choose next, it will
always be inserted inside this range. The range bar will move, however, as further notes
are inserted, with the range bar center always aligned to the most recently inserted note.
Further key commands allow you to place the range bar in different octaves: Octave 0
to Octave 6, and also Octave +1/−1/+2/−2, which moves the range bar up or down 1 or
2 octaves. The range bar can also be moved with the mouse.
Rests, Stepping Forward and Backward, Corrections
The Rest key command moves the playhead forward (in accordance with the currently
set note value) without inserting a note, thereby creating a rest.
The Step Forward and Step Backward key commands also move the playhead forward
or back by the length of the selected note value.
The Delete key command deletes the most recently inserted note and moves the playhead
back to the position where the note (previously) began. This allows for quick
corrections—another note can be inserted immediately, replacing the erased one.
474 Chapter 14 Recording in Logic Pro