The term 'DRUM EMANATION' is a combination of two words: 'DRUM' and 'EMANATION'. The word 'DRUM' is a four-letter word that refers to a percussion instrument, usually consisting of a hollow cylinder or shell with a membrane stretched over one or both ends. The word 'EMANATION' refers to the act of emitting something, such as a sound or an odor. Together, the two words form a phrase that describes the sound produced by a DRUM when it is struck. This sound is often referred to as a 'BEAT'.