Apple Logic Pro 9 - Manual (Page 75)

Introducing the Piano Roll Editor
The Piano Roll Editor displays MIDI notes as beams on a grid. The piano keyboard to the
left is aligned with the note pitches represented by each beam. Note length is indicated
by the relative length of each beam. Note position is displayed from left to right—a ruler
and vertical grid lines make it easy to see where notes begin and end. Note velocity (how
hard a note is struck, and usually how loud) is indicated by color.
Full details can be found in Editing MIDI Events in the Piano Roll Editor .
Introducing the Score Editor
The Score Editor uses traditional music notation to display the MIDI note events (plus
pedal and other event types) of MIDI regions. You can insert and edit MIDI note events
in staffs, and use musical symbols to clarify their meaning in this editor. Text, such as
lyrics, titles, and comments, can also be integrated into the score. The Print function
allows you to print complete scores, with staff numbers only limited by the paper size.
75 Chapter 3 Overview of the Logic Pro Interface