Here's a tune with some 'mixing' in the mixolydian! Learned from a recording by WV fiddler Wilson Douglas. A.W. Jeffreys dulcimer tuned A-a-a. There is a D# in some of the sub=phrases, giving them a lydian flavor. The note is produced by tilting up the noter and pressing it against the string, as described by Robin Clark in his FOTMD thread: BONAPARTE CROSSING THE ROCKY MOUNTAINS .
Here's a link to Wilson Douglas' playing of this tune: http://wilsondouglas.bandcamp.com/track/pretty-little-cat