a large keyboard musical instrument with a wooden case enclosing a soundboard and metal strings, which are struck by hammers when the keys are depressed. The strings' vibration is stopped by dampers when the keys are released and can be regulated for length and volume by two or three pedals

(especially as a direction) softly

the choir addresses the saint piano in Polish, then fortissimo in Latin

performed softly

in piano singing her tone remains pure

a passage marked to be performed softly