Many midi files downloaded from the internet have the initial volume level for each track embedded in the file.
Most times volume (CC7) or expression (CC11) data can be seen and edited using the Event List Editor available in the Window > Notation > Event List Editor. However, the initial values can also be embedded in the file header which is not accessible for editing.
Jim, I am award of that, but it happens on fresh blank compositions with just chords entered. No events, except notes, in event viewer. And, on imported tracks, I strip all of the volume events Ctrl 7. Thanks.