Slow day at work. Thought I’d throw some of my ideas about this out there.
Thinking about a basic reel pattern:
dudu dudu dudu dudu
There’s a ton of expression available by experimenting with where you put the accents. This is your percussion, the thing that gets the music under people’s feet.
For starters what not to do: putting all your accents on the downbeats kills the groove instantly:
dudu dudu dudu dudu
Nobody will ever yell wahoo, fling underwear or hotel room keys, or rush the stage if you play like that. The magic lies in the space between.
An obvious place to start is to simply kick the backbeats:
dudu dudu dudu dudu
You can deemphasize or eliminate the upstrokes and get your basic boomchucky contradance sound. It’s nice for hornpipes, but I don’t personally care for it in reels.
Another approach is to use a three-against-two pattern:
dudu dudu dudu dudu
That groups your downstrokes in a 3-3-2 pattern. A punchier pattern (that I use more sparingly) results when you group them 3-2-3:
dudu dudu dudu dudu
It’s very effective to change chords at those points. You can do all kinds of cute stuff by muting or unmuting particular parts of the pattern, or hitting your high or low strings just on the accents. Think chukka-chukka-chukka WHANG chukka WHANG chukka-chukka.
You could also extend the three pattern and ignore the downbeat entirely for a while, though it’s probably good not to spring this on a melody player unawares:
dudu dudu dudu dudu dudu dudu dudu dudu
A nice slick Lunasa/Jim Murray sort of sound comes from accenting every count of two:
dudu dudu dudu dudu
This imparts a very different feeling to a tune (you’d tend to count in four rather than two) and might not be to everyone’s taste. I really like it a lot, myself. Taking the basic idea, you can drop some other accents into the pattern and get some good sexy grooves:
dudu dudu dudu dudu
dudu dudu dudu dudu
dudu dudu dudu dudu
In jigs, I kick the backbeats as a matter of course:
dud dud dud dud
I’ll change chords there quite a lot too; this gives a tremendous lift.
I also might accent every count of two as in the reel pattern mentioned above:
dud dud dud dud
Or combine the two:
dud dud dud dud
There are of course many more possibilities.