appassiono
Appassiono is a term occasionally found in musical scores or editions as a directive intended to convey passionate expressiveness in performance. Unlike the well-established appassionato marking, appassiono is not part of standard music terminology and is encountered only sporadically, mainly in modern, experimental, or edited editions.
Etymology and usage history are unclear, but the word appears to derive from Italian roots related to
Interpretation of appassiono generally parallels the intent of appassionato: to perform with strong emotion, heightened intensity,
Overall, appassiono is a rare and nonstandard marking whose meaning is largely determined by the specific edition