The GAFA Arts Collective, London and Europe’s first Samoan arts collective, is set to showcase the concert “Siegfried the Wagner Blade” at St. Marys in Putney on Nov. 23, 2019. The cast features three Samoan artists including Sani Muliaumaseali’i, a tenor, who will take on the title role alongside his brother, bass-baritone Toto Muliaumaseali’i, in the role of the Wanderer. {…}