The 2nd 'Blazing Autumn People's Concert' (5)

  Then, Longmuir appeared again on the stage to sing "La Donna e mobile"(The woman is fickle) from "Rigoletto," and Ferris and Gore followed to perform their singing with "Seguidilla" from "Carmen" and "Sempre Libera"(Always free) from "La Traviata."
  Finally, Onuki, clad in a white kimono,  concluded the opera portion of the concert with Japanese opera "Yuzuru." She  filled the concert hall with her clear and crisp soprano voice when singing an aria, "Sayonara."
  After the stage setting was changed and the orchestra took a break, a piano was setting at the center of the stage and Dr.Handa and Onuki staged again  a total of 12 Japanese folk songs and nursery rhymes including "Momiji"(Maple leaves) , "Tsuki no Sabaku"(The desert of the moon), "Oborozukiyo"(Misty moon), and "Akebono"(Dragonfiles). 
  In the end, the two sang together "Hana"(A flower) and "Furusato"(Hometown) , which were quite polular in Japan. 

Dr.Handa, together with opera singers and orchestra members
greet the audience.
IFAC

(source: THE JAPAN TIMES, November.24, 2015)
http://www.japantimes.co.jp/culture/2015/11/24/general/world-opera-singers-delight-new-national-theatre/#.VnDG-3zUjIV