Here's a beginner lesson on a few basic reggae guitar strumming patterns.
The video lesson below (See the very bottom of this blog post) covers
how I learned to play reggae guitar in New York City, then gets into
right-hand and left-hand technique and some strumming exercises in 4/4
time.
Although often regarded as a “shredder’s” technique, the notion
of sweeping (or raking) the pick across the strings to produce a quick
succession of notes has been around since the invention of the pick
itself.