Due to the concert series "Fenster nach Osten" (Window towards the East), Sumina gave well-attended concerts with the "Neues Zürcher Orchester" (New Zurich Orchestra) in Zernez, Klosters as well as Schaffhausen, Switzerland.
The orchestra, which has performed in great halls such as the Philharmonie Berlin and have upcoming performances in halls such as Suntory Hall Tokyo, was founded in 1990 and has been led by Martin Studer ever since.
The motto of the orchestra is "lively music-making", suiting Mozart's 4th Violin concerto which Sumina played. "Suminas Mozartplay left no desires unfulfilled", was one of the critics released by the Schaffhauser Nachrichten of 2.3.2015, "...(She) played this gracious concert technically brilliant, with flawless, beautiful sound and playful lightness without visible endeavour."
Martin Studer and Sumina Studer are not related.