When I first start Cakewalk BandLab and open a .mid file this is what I see. There is no audio, just MIDI data in the song.
I just wish I could have BandLab default to open with the MIDI notes showing instead of the solid bars all the way across the screen.
I got the notes to show by clicking Edit - Select All. Then opening up the first track, holding down the CTRL key and clicking Clips and finally Notes. When I save the file and re-open it, it still defaults to the solid colored bars in the tracks.