The geza can even be required to add specific sound effects such as the sound of insects. The following is a very abbreviated list of some of the instruments with their uses. The o-daiko is one of the principal instruments of the geza in which it plays a substantial role. It is a large membranophone with two tacked heads, one of which is played with two long tapered sticks. It has a long association with kabuki and was originally sounded from the yagura to summon the audience to a kabuki performance, or to sound an alarm if the audience became rowdy.
Important use is made of the o-daiko to create special moods.
For example there are drum patterns for the sound of wind, for waves, and for falling snow. It can also be used to added further colour to the nagauta music. This small gong can be hand held or suspended and is played on the indented side with a bone mallet. The sounding of this bell conveys the impression that the action is related, or refers to a temple Taiko Two taiko are included in the instrumentation of the geza . A small gong set on three legs used to mimic the sound of insects.