Part 5 · Other Styles · Chapter 61
A shuffle is built on triplets with the middle note left out: long-short, long-short. It is the heartbeat of blues, early rock and roll, and a lot of rock.
Play the first and last note of each triplet.
Add bass drum on 1 and 3, snare on 2 and 4.
The bass drum plays the shuffle rhythm too on beat 3.
A shuffle should bounce. Listen to blues records and sing along with the hi-hat before you play it.