A thought. Once you have it downloaded you can import the midi into Noteworthy and see what it produces.

A second thought. Old tunes don't always conform to our modern notion of barred music. I play quite a lot of Renaissance music on the recorder and we play from modern editions. The originals were unbarred and the rhythm does not always fit neatly to modern barred format and you get a lot of notes tied across barlines. The phrasing in such music does not always fit neatly into a definite number of bars so the strong beat is not always at the beginning of a bar.