His works have been performed in several modern music festivals in Portugal, Spain, France, the Netherlands, Austria, Germany, Sweden, Switzerland, Ukraine, the U.S.A., Macau and Hong-Kong, etc.
António Chagas Rosa's latest opera - Melodias Estranhas - upon a libreto by the Dutch writer Gerrit Komrij, was the result of a joint commission made by the cities of Oporto and Rotterdam, European Capital of Culture in 2001.