Excerpt from "Accordion Resource Manual"

    "A history of the accordion is in essence a history of the vibrating reed.  Free reed instruments can be grouped into at least three categories as follows:  (1) mouth organs or harmonicas, with the wind being supplied by the performer's mouth; (2)reed organs, in which the wind was originally supplied by foot power, and later mechanically; (3) accordions, where the wind supply was hand operated at first, and also mechanically produced later.

    Free reeds were composed of a tongue or lamella which was made of metal or of cane fitted into a frame.  This tongue was attached to the frame at one end but left detached along three of its sides to allow it to vibrate freely back and forth in the frame.  The {above} diagram illustrates various types of reeds made both of metal and of cane..."

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