Watch the Day 4 online guitar lesson by Ravi from Learn Guitar in 21 Days

We're going to add a groove (rhythm) here in the strum. Listen closely to how it sounds, and look at how I'm moving my strumming hand to make the blues/rock feel. It's all still down strumming, but with accents on the "downbeats" or when I say the numbers in my "1-2-3-4" count.