Watch the Muted Chord online guitar lesson by Muriel Anderson from 50 Right-Hand Techniques You Must Know
You can use a muted chord technique in many styles of music. Strumming down and then immediately muting makes it sound a bit like a snare drum.
I also sometimes use this technique when playing a marching band tune on the guitar. The example here is a standard accompaniment pattern using a muted chord with the index finger.