Pro Tools always chases continuous controller events and program changes for MIDI tracks. This ensures that controller values and patches for MIDI devices are always set correctly.For example, suppose a MIDI track lasting 32 measures starts with a MIDI volume of 127 and in the last bar fades down to 0. If after playing the track in its entirety you attempt to play from bar 8, the initial MIDI volume of 127 is chased and sent to the track’s assigned device—otherwise the track would not be heard since the most recent volume event sent would have been 0.Chasing also occurs for a MIDI track’s default program change, along with any program change events residing within the track. Therefore, if you have chosen a default program change for a track, when playing from any point within the track, the program change event is sent to the track’s assigned device.