The harmonicor or Hautbois Nouveau ("New Oboe") was invented around 1861 by Louis Julien Jaulin of Paris and as its alternative name suggests, it was intended as a substitute for the oboe or cor anglais (hence harmoni-cor). It had 25 piston-like keys covering a range of two chromatic octaves, with white keys and black keys arranged in similar fashion to a piano keyboard.
The shape of the harmonicor as vaguely reminiscent of an oboe, but there was another version somewhat in the form of a trumpet, called the harmonitrompe.
A Brief History of Mouth Blown Free Reed Instruments
What Is A Free Reed?
Origins Of The Free Reed
Eastern Free Reed Instruments
A Selective Discography Of Asian Free Reed Instruments
Western Free Reed Instruments
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