a device for decoding a score and tools for learning and training of playing a polyphonic instrument

摘要

The score decoder and learning aid includes two plane elements (1,2). The first of these elements is in the form of a plate shaped casing. This element has several windows in one or more of its faces. The windows are associated with pictures representing positions of fingers during playing of an instrument. The second plane element slides relative to the first. It has pictures corresponding to positions of fingers for forming either a chord or single note. Pictures generated using the two elements are combined. Labels (4) can be temporarily attached to sheets of music.