Arpeggione 活页乐谱
The arpeggione is a string instrument that resembles a cross of violoncello and guitar. It is bowed like the cello, but it has a fretted neck and six strings tuned like a guitar's. It was invented in 1823 by Vienesse guitar maker Johann Georg Stauffer (1778-1853), and enjoyed a few years of popularity before it was largely forgotten. The only notable extant piece for this instrument is a sonata for piano and arpegionne by Franz Schubert, which was not published during his lifetime, and which is usually played on a cello.