将以下英文段落翻译成中文。



Western classical music is one of the great art forms of the world. It has magnificent traditions and is performed all over the world. The origins of western classical music can be traced back to ancient Greece, but it was not until the Middle Ages that the music took on its current form. At that time, music was predominantly vocal and usually religious in nature. Over the centuries, many composers have contributed to the development of western classical music, including Johann Sebastian Bach, Wolfgang Amadeus Mozart, and Ludwig van Beethoven.
西方古典音乐是世界上伟大的艺术形式之一，拥有宏伟的传统，在全世界范围内演奏。西方古典音乐起源于古希腊，但直到中世纪时期，音乐才成为目前的形式。那时，音乐主要是声乐，通常是宗教性质的。几个世纪以来，许多作曲家为西方古典音乐的发展做出了贡献，包括约翰·塞巴斯蒂安·巴赫、沃尔夫冈·阿马德乌斯·莫扎特和路德维希·范·贝多芬。