TO TU£ QU££N'B MOST EXCELLENT MAJESTY, AND TUE BBITISU ARMY AND NAVY. J. KOHLER’S NEW PATENT LEVER INSTRUMENTS. ..
... Patent gives to these Instruments are:— 1. All the Tones and Semitones produced the Patent Lever are quite perfect as the Natural Notes the Instrument. 2. The intervals in the Diatonic and Cheomatic Scales are perfect, the compass greater, and the most rapid ...