copies a range of events.
These events can be copied from one track to another,
or copied within the same track.
The source range may overlap with the destination.
The first argument is a list specifying a particular track
in a MIDI song.
The first element of this list is a MIDI song identifier
as returned by
The second element is a valid track number in the MIDI song.
This list specifies the destination track for the copy.
The third argument is the time to start depositing the
events specified in the source range.
Note, the first event might not be placed at exactly the
requested time if an event does not occur at the start
time for the source range.
The offset between the first event and the destination start
time will be the same as the offset between the first event
found in the source range and the start time of the source range.
The fourth argument is another list identical in form to
the list identifying the destination track.
This list specified the source track.
The fifth and last arguments specify the range of events to
They determine the start and end times of the range.
All events found at time
up to, but not including events found at time
will be copied.