also: アルペジオーネ · アルペッジョーネ
noun
arpeggione
A bowed string instrument invented in the early 19th century, combining features of the guitar and cello. Used primarily in classical music contexts.
from Italian
シューベルトのアルペジョーネ・ソナタは、この楽器のために書かれた。
Schubert's Arpeggione Sonata was written for this instrument.