Playback and Recording : MIDI Recording : Recording MIDI and Instrument Tracks : MIDI Clips Are Created on Barlines

MIDI Clips Are Created on Barlines
When recording MIDI, or when manually entering MIDI notes, the beginning and ending of MIDI clips are created on bar boundaries. This greatly facilitates arranging MIDI clips in a musically meaningful way, in whole bar lengths.
The beginning of a recorded MIDI clip always starts on the barline immediately before the first MIDI note (Note On) of the clip. Likewise, the MIDI clip ends on the barline immediately following the last note (Note Off) of the clip.