Gamelan outside Indonesia Seni Tari Indonesia di Nederland ) plays Javanese Traditional Karawitan dan Dance. The Polish band - Warsaw Gamelan Group - is perhaps the only band in this part of Europe that plays Indonesian music. WGG specialises in music from central Java. There are two Javanese gamelans in Portugal, one in Lisbon, at Fundação do Oriente and another in Oporto at Casa da Música. Besides being used for traditional Javanese music, the gamelan at Casa da Musica has been at the centre of very innovative projects, including the development of a Robotic Gamelan. Inspired by the ideas of gamelan collective practice,
Gamelan common in national arts conservatories founded in the middle of the 20th century. Gamelan's role in rituals is so important that there is a Javanese saying, "It is not official until the gong is hung". Some performances are associated with royalty, such as visits by the sultan of Yogyakarta. Certain gamelans are associated with specific rituals, such as the "Gamelan Sekaten", which is used in celebration of "Mawlid an-Nabi" (Muhammad's birthday). In Bali, almost all religious rituals include gamelan performance. Gamelan is also used in the ceremonies of the Catholic church in Indonesia. Certain pieces are designated for starting and