percussion instruments 

A  percussion instrument  is a type of musical instrument sound originates when struck or shaken. It is perhaps the oldest form of musical instrument.    

The percussion is distinguished by the variety of timbres that can produce and ease of adaptation to other musical instruments. Note that a variety of sounds can be obtained according to the sticks or mallets used to hit some of the percussion instruments.  

A percussion instrument can be used to create rhythm patterns ( drums , tam-tam and others) or to emit musical notes ( xylophone rhythm .   

Bongos

The  bongo  is a  tool  membranophone  consists of a set of two slightly tapered wooden bodies, one smaller than the other, connected by a strip of wood. Their upper-diameter larger mouths are covered by leather-Hairless taut with a metal ring through metal braces. The interpreter-bongo-so struck with the hands, which puts it between her knees, sitting, placing the sharpest patch (the smaller) on your left.

It is an instrument of the called "minor percussion." Membranophone composed of two wooden drums with a patch each with a height difference between them generally of a fourth or fifth. Patches are girded by hoops and tension system keys (in the beginning were tensioned by a warm fire or ropes or straps). The drums are joined by side with a piece of wood, but was formerly a thong or a rope. Drums are conical in shape and running with the blows of the palms or drumsticks. The smallest drummer is called male  and placed on the left; right being called the greatest  female . This arrangement is used by people with right predominance. For people with left dominance, the bongo is placed in reverse position, leaving the  male  to the right. Usually placed between the knees of the performer sitting with a tilt angle of about 45 degrees away from the performer, although it is also widely used on a lectern. The / a switch performer usually use with the Cuban cowbell, generally used in the climax of son, called the  montuno .