Drop-clutch
From Wikipedia, the free encyclopedia
Drop-clutch is a mechanism to disengage the top hi-hat in order to free up both feet while double bass playing. This results in the hi-hat producing a closed sound until the hi-hat foot is available again. The mechanism is disabled by fully pressing the hi-hat pedal. Drop-clutches are normally controlled by a hit on the clutch using the drumstick to release the top cymbal. By pressing the hi-hat pedal again, the drummer allows the clutch to grab the top cymbal back again.