Music

  Music   is generally defined as the   art   of arranging   sound   to create some combination of   form ,   harmony ,   melody ,   rhythm   or otherwise   expressive content .   Exact   definitions of music   vary considerably around the world,   though it is an aspect of all human societies, a   cultural universal .   While scholars agree that music is defined by a   few specific elements , there is   no consensus   on their precise definitions.   The creation of music is commonly divided into   musical composition ,   musical improvisation , and musical   performance ,   though the topic itself extends into   academic disciplines ,   criticism ,   philosophy , and   psychology . Music may be performed or improvised using a vast range of   instruments , including the   human voice . Music often plays a key role in social activ...