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... gives to these Instruments are:— 1. All the Tones and Semitones produced by the Patent Lever are quite as perfect as the Natural Notes on the Instrument. 2. The intervals the Diatonic and Chromatic Scales are perfect, the compass greater, and the most rapid ...
... a simple one, and only P °duce a ''« to keep it in order, and the notes the lever in en t0,1,a1 not superior, to the natural notes on the ' Bnd every combination of harmony required ol P °duced°k for military aud orchestral effects, maybe been a these ...