Pitch and tone are controlled by a set of piano-like keys, and it is played much like the accordion, to which it is related. It is also related to the harmonium. It is not to be confused with the Viennese reed organ, which is also sometimes referred to as a melodion. The Viennese reed organ's tones are produced by the pressing of bars against a rotating steel cylinder. Invented by JC Dietz of Emmerich, Germany in 1806, it is something like a player piano.
External references
images of melodions (http://www.suzukimusic.co.uk/educational/melodion.htm),
image of a Viennese reed organ (http://www.pha.oeaw.ac.at/Mechanical_Music/melodiongrossmp3.html)
This Melodion benefits from tapered reads*, meaning a wide variation of tone is available; from soft woodwind to powerful brass, all with little effort.
Suzuki Melodions are voiced in three distinct ranges, just like a recorder ensemble; soprano, alto, and bass voices combine to produce full, vibrant sounds, the Melodion makes keyboard instruction in the classroom practical for the first time.
Lightweight Melodion finished in translucent burgundy, ideal for starter instrument, or for children and toddlers.