Musical key transposer
US6245981A · kind A · utility
31Cited by
13References
9Claims
0Family size
Inventor
Key dates
| Filing date | Mar 27, 2000 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Mar 27, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B15/005
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A circular slide attachment with pitch notations and additional markings is provided to enable circular pitch instruments and their indicia to be used for transposing musical keys. In the preferred embodiment of the invention, a circular slide having twelve chromatic scale note indicia is rotatably and coaxially fixed to a thirteen-tone pitch instrument bearing thirteen note indicia. Additional markings affixed to the pitch instrument cooperate with markings on the slide to enable transposition of the notes represented by one set of indicia to the notes represented by the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.