I have posted about some Wendy MacIsaac tunes in other threads (will add links)... but finding myself drawn to more & more of her playing and her tunes. 

I'm compelled to have one of her tunes cooking on the back-burner at all times, but admit I've been cherry-picking thru her sets - hopefully I'll complete them someday. 

The one I started on today is "The Battle Of Prestonpans" - 'think' it's a 6/8 March, caught my ear a while ago.  Don't know how far I'll get thru the rest of the set before I move on, but these tunes are listed in this set on The Session: "The Duke Of Athole" (strathspey), "Mabou Coal Mines" (reel), "Fr. Francis Cameron" (reel), and "John Morrison" (reel). 

I haven't listened well enough to the whole set.  Think the 1st tune sounds like it has a strathspey tacked on (before the 2nd tune listed) & may be a few more that are unidentified in the set, or variations, (Cape Bretoners seem to do this).  Tunes like the 'Morrison' have SIX parts!

I've been working on a type of grace note called a "catch" by pipers - maybe similar to a 'lower mordent'(?)  They are lower than the main note, sounded a little longer than than a typical 'grace' note - NOT percussive, so usually written as a thirty-second note, or sixteenth. 

Anyway, Wendy uses them regularly in her playing (you can hear right off in the 1st tune).  Natalie MacMaster uses it too - I've been playing her version of "Fingal's Cave" with them.