Some initial results:
I have imported the Dorian mode tunes, and though the tune is OK, I get some information messages, and warnings that bars are too short.
You can normally ignore these once you have checked them.

Example: Bonnie lass amongst the heather

(I just give these examples to show the structure validation which is done)

Info: no Clef defined. abc Default TREBLE has been used

Bar 3 in voice 1 is at leat a crotchet too short . Correct, it has only 4 beats in 5/4 time, ie. |G3 E G4|| )

Bar 4 in voice 1 is empty (Actually this is a feature or minor defect in HARMONY, where an extra bar is introduced at the M: change of time signature

Bar 5 in voice 1 is alt least 3 crotchets too short (correct)


But there does seem to be a bug when importing "To Daunton Me".
For some reason, it is objecting to some instances of the > but not others. Nothing to do with the mode!