This instrument with knobbed gongs is called bonang. It is one of the instruments in the gamelan that plays more elaborate melodies. The term 'gamelan' refers to the action ('an') of hammering ('gamel') the bronze instruments such as gongs and drums among several other types of instruments with beaters. The bronze instruments play the main melody and are accompanied by softer wind, wood and string instruments. The practice of taking off shoes and not stepping over the instruments is a sign of respect and it is believed that the correct manner of playing results in refinement of one's character. Today, gamelan music remains an important part of court and village life in Java. Many sets are kept as royal heirlooms (pusaka) and are played at important ceremonies.