"2010-01-31Z"^^ . . . . . "3393.0"^^ . . . . . . . "25th Anniversary Celebration (released in Japan as Altan: With the RT\u00C9 Concert Orchestra) is the tenth studio album by Irish folk music group Altan. It was released in January\u2013March 2010. The album does not contain new original material (except for one new song, \"Soilse na Nollag\") for it is a compilation of studio re-recordings of previous material with orchestral arrangements."@en . "25th Anniversary Celebration"@en .