PICCOLO: the minute dimensions of this weapon make it especially lethal as it is easily concealed and can be set off just about anywhere.
As a solo weapon, this device emits a high-pitched squeal that directly targets the inner ear. The application of this tone temporarily disorients its intended victim rendering him unable to react. The natural reaction of covering one's ears to reduce the intense pain causes military personnel within a 100 yard radius to drop their weapons leaving them defenseless to further attack.
Applied in concert with a second piccolo of slightly higher or lower pitch, the weapons produce the effect of an ice pick through the eardrum and may cause profuse bleeding of the aural cavity. These weapons are constructed in three forms; metal, composite materials, wood, or any combination of the three. The all-metal piccolos are especially lethal.
The only countermeasure to this weapon is to apply psychological warfare in the following manner. Compliment the musician on her: clothes/hair/shoes. This will distract the musician(s) from emitting her deadly tones and cause her to gab endlessly about herself.
This in itself takes us to another problem man has dealt with for a thousand years and to which there is no antidote. Good Luck!
http://www.osbornmusic.com/jokes.html