Open roll

A type of multiple bounce roll with typically less than three bounces per stroke. This roll is commonly used with a marching band or Drum and Bugle Corps in order for the rolls to have a clear and distinct sound in outdoor performance. This is also known as a measured roll. When performed as a rudimental drumming exercise, the roll would begin slow (or open) so one could count the individual bounces, then gradually increase in speed to one continuous sound ( close), then gradually decrease in speed to where the bounces were again distinguishable ( open). See also measured roll; roll; press roll; closed roll; multiple bounce roll.