fortepianowym
Fortepianowym is the instrumental form of the Polish adjective fortepianowy, meaning piano-related or pertaining to the fortepiano. It is used in neutral, descriptive contexts within musicology, performance practice, and instrument design to indicate a relationship to the piano rather than to other keyboard instruments.
The term fortepianowy derives from fortepian (the instrument) with the standard adjectival suffix -owy. In Polish,
Usage of fortepianowy is widespread in Polish musical discourse. It is not a separate instrument or genre
See also: Fortepian, Utwór fortepianowy, Technika fortepianowa, Brzmienie fortepianowe.