He invented a new pitch pipe capable of being carried in the vest pocket which superceded the old fashioned affair of the ancient choirs. He also made a reed trumpet. As this could only be played in the natural scale, or in that to which it was tuned, I made another with twelve pipes to the octave, and so contrived that the key notes could be instantly changed to any one of the twelve semi-tones. Thus by turning the circle each pipe could be brought in succession between the mouth-piece and bell. This instrument was invented by Mr. Bazin in 182, and for many years the worshipers in the Church at Canton Corner listened to it accompanying the choir.
Some persons assert that they heard it a mile away.
Those who have heard it will never forget it. In the summer of 1831, Mr. Bazin made a small instrument resembling the harmonica. The pipes were similar but were stationary. The wind was let into them by means of valves and knobs arranged in two parallel lines, there being twelve pipes to the octave, and only seven valves. There was an arrangement for changing the key as well as for sounding the accidental flats and sharps when required with some light modifications, and the addition of a tilting bellows, something like those subsequently called melodeons.