Constrain To Key, Pitch Tab
User Level: Basic, Advanced
MIDI File Usage: Notate
Check this box to limit the notes in the created MIDI file to the notes in the Key you specify. Any detected notes that are not in the key are filtered out. Select this option when the music remains in key most of the time, as it will reduce the number of erroneous notes in the MIDI file. If you use this option and too many notes are filtered out, try again without it. This option cannot be selected if the Key is set to Auto Detect.
The first section did not use the Constrain To Key feature.
The second section used the Constrain To Key feature for the key shown (F major).