Franz Schubert
Arpeggione Sonata a minor D 821
Good intentions are simply not good enough (to freely paraphrase Kurt Tucholsky): the arpeggione, a kind of hybrid instrument like a large bowed guitar, never won acceptance among musicians. This curiosity of instrumental engineering would certainly have long since been consigned to oblivion had not Franz Schubert of all people composed his A minor sonata for it.