Actually, Al indirectly raises an important question:-
Is the Dorset Four Hand Reel actually a reel in the sense that Matt means or in the way that reels are played in Ireland and Scotland? My answer would be - no, it isn't. It is more of a polka (or measure). But then take two of the tunes that our band, The Sussex Pistols, played at a dance last night; The Glakey Hornpipe is actually a superb English jig, The Bluebell Polka, at least played in the manner of the famed Jimmy Shand recording is much closer to a steppy Scottische than a gallopy polka.
But then as Shakespeare didn't say in Romeo & Juliet -

What's in a name?
A reel by any other name
Would dance as sweet.