Plosive aerophone [implosive aerophone].
Aerophone in which enclosed air is set briefly into vibration by a sudden percussive impulse, as when the end of a tube or the mouth of a vessel is slapped by the palm of a hand, a paddle, or the sole of a shoe (as for the slap tube and kimkim), or the open end of a tube is struck against the ground (as for the stamping tube). The idiophonic sound of the impact itself is secondary. The pitch can often be controlled by shading with the hand the open, unstruck end of a tube or a secondary hole in a vessel. Explosive aerophones are generally without definite pitch and are seldom used in music, although cannon fire has been used dramatically in certain programmatic orchestral works, notably Tchaikovsky’s 1812 Overture, and the sound of a cork being expelled from a champagne bottle is a widely recognized sound effect. A common children’s example is the popgun....