| Tin Pan Alley |
| Upright Transposing Piano, 1940 Maker: Weser New York Photo on right shows lever. |
| photos by M. Erixon-Stanford |
| This upright piano was customized for composer Irving Berlin, with a special transposing lever beneath the keyboard, allowing the pianist to play in any key without the need to transpose. (Berlin could only play in one key) |
| . |
| . |
| . |
 |
 |
 |
| . |
| . |
| . |
| CONCERT PITCH PIANO SERVICES |
 |
 |
|
 |
 |