its the nice little touches with Joan.

theres that thing on come all ye fair and tender maidens, where she is playing the d7 arpeggio intro , and just flips a little finger on to the third fret first string - the G.

it gives such an atmosphere of yearning - so simple, but so clever.

also in once I had a sweetheart, she is playing part of the Ist position A chord - probably holding down three stings with the index finger. a sort of running arpeggio on the three strings. then she plays this lovely unconventional alternating bass. First the open 5th string A, then the 6th string fretted at 3 - the G.

clever lady!