Saya Hashino obtained a bachelor of piano at Tokyo National University of Fines and Music (Geidai), afterward until 2002 she worked as the assistant professor and accompanist of the same university. In 2005 she obtained a Master of piano soloist with the special prize « Georges Filipinetti ». In 2009 she obtained a Master of organ soloist with the special prize of organ « Pierre Segond » in 2007 and 2009.
She has won various competitions international: 1st Prize « 14th HIMES Competition » in Japan, 3rd Prize « 14th Calabria A.M.A Awards Concorso Pianistico Internazionale » in Italy, and the price Special Jury encouraging and that the best French music performer during « 6th International Piano Competition Highness Royal Lalla Meryem » in Morocco, finalist of the
« 7th International Music Competition Jean Françaix» in France.
Saya Hashino as soloist, chamber musician and orchestra, piano, organ and harpsichord with such orchestras as the Orchestre de la Suisse Romande and the Geneva Chamber Orchestra and Ensemble Contrechamps and in many international festivals. Since 2005 she holds the position of accompanist appointed to the Haute Ecole de Musique de Genève and organist of Netherlands Protestante Church of Geneva. She is also a pianist Lémanic Ensemble Modern, the Amadeus Piano Quartet with Robert Zimansky(violin), Verena Schweizer(viola) and Stephan Rieckhoff (cello), Duo Saxo and Piano with Vincent Barras and saxophones.
She performed especially with the international soloists, the clarinetist Wenzel Fuchs, trumpetists Ole Edvard Antonsen, Timothy Morrison, Eric Aubier, Reinhold Friedrich, Gérard Métrailler, Hans Gansch, the hornists Esa Tapani, André Cazalet, the cellists Anton Niculescu, François Guye, the violinist Robert Zimansky.
Also very active in the field of contemporary music, she practiced in various forms. Since 2012, she teaches as a visiting professor, and all contemporary music piano solo at the High Music School of Lausanne.