Part 1 of Essay
There are few certainties about the percussion family. No one can say how many instruments it contains; few have agreed on playing techniques; and few could name one orchestral piece specifically written with percussion in mind. However, one thing is certain, percussion has been shown over time that it is not merely a mat ....

Part 2 of Essay
.... their sound from vibrations without the use of a stretched membrane. This could include castanets, rattles, and mallet instruments. Membranophones are those that produce a sound from the vibrations of a stretched membrane. These include any type of drum hit with a stick. Both of these instruments are tunable in many different ways and forms; therefore, these instruments can be used as melodic instruments (“ Percussion” 653). Basic idiophones (also refereed to as concussion instruments) are struck together. ....