In toto, The Graffe Quartet may comprise a significant portion of the Czech Republic’s current generation of classical music wunderkinder. Members of the foursome are all in their mid-twenties, are all multiple competition prize winners, and are all graduates of the talent-rich classical music community of Brno. This evening they are joined by internationally celebrated pianist Michiko Otaki, praised by the Newark (NJ) Star-Ledger for displaying “the attributes of greatness: expressive sensitivity, power, facility and stage presence.”