“ ......her tones were always forceful and tasteful, arresting and grandiloquent. Her resultant power belied her size and reminded of that extremely strong-handed Russian school of pianism and past immortals like Emil Gilels, Lazar Berman, and Sviatoslav Richter…..”” - Fred Kirshnit

— The New York Sun

....... Ms. Koshi would seem to have a real affinity for Takemitsu's very French-oriented little Memorial to Messiaen as she did later in her superb encore account of Debussy's Book II Prelude:" Bruyeres". Her version of Chopin's Sonata No.3 in B minor, Op.58 was once again cool and pianistically intelligent. She brought forth the wonderful myriad contrapuntal detail in the Allegro maestoso first movement; her scurrying Molto vivace danced off her fingertips, too.” - Harris Goldsmith

— New York Concert Review