A fictional electronic instrument from the girl with a symphony in her fingers short story by Michael G. Coney. From volume 34 number 5 of Science Fiction Galaxy magazine. The instrument is played by Joan a servant of 3 - d movie star karaoke Jones who plays it for her as background music. carioca Jones used to play it also but she is past her Prime, and the orchestra Le requires young fingers to play best. Jones fines and unpleasant way to solve this issue at the by the end of the story.