Kent,

Thank you for your ongoing help. I'm beginning to think it may be some setting on my end.

I'm attaching two jpegs showing what I see. The first is from the ABC file....2 F#s in the first full measure (set by the key), followed by an F natural, then another F#. The last F# should not play as a G...the previous natural F has overridden the key signature for the rest of the measure and to get back to an F#, it must appear as an accidental.

Nevertheless, the second picture shows what I'm seeing in the notation window of BIAB. In the first full measure there are two F naturals (instead of 2 F#) followed by an E (instead of an F natural), and then the F# (which should play as an F#, not a G).
[img]https://www.dropbox.com/s/7qho6uety8illup/Gracie%20abc.jpg?dl=0[/img]
[img]https://www.dropbox.com/s/dxb1n55a0gc02h4/Gracie%20BIAB.jpg?dl=0[/img]