Flams are fun! A flam is defined as a soft stroke, or grace note, and a louder main stroke played closely together to sound like one. Flams can be closed (less space between strokes) or open (more space between strokes). Classical flams are executed by playing the grace note softer than the main note. In rock music, flams are often played with the grace note and main note at the same volume. Experiment with both techniques.