Editing Accordion (section)

====Body====
[[File:Petosa - showroom 01 (cropped).jpg|thumb|left|Showroom of accordions (Petosa Accordions, Seattle, Washington)]]
The accordion's body consists of two boxes, commonly made of wood, joined by the bellows. These boxes house reed chambers for the right- and left-hand keyboards. Each side has [[Grille (architecture)|grille]]s in order to facilitate the transmission of air in and out of the instrument and to allow the sound to project. The grille at the right-hand side is usually larger and is often shaped for decorative purposes. The right-hand keyboard is normally used for playing the melody and the left-hand one for playing the accompaniment; however, skilled players can reverse these roles and play melodies with the left hand.<ref group="notes">[[Guido Deiro]] claimed he was the first accordionist to play a solo with the left hand: ''Sharpshooter's March'' (1908) Guido Deiro, ''Guido Deiro's Own Story of Sharpshooters March'', ''The Pietro Musicordion'', Volume 6, Number 2 (May–June 1948)</ref>

The size and weight of an accordion varies depending on its type, layout and playing range, which can be as small as to have only one or two rows of basses and a single [[octave]] on the right-hand keyboard, to the most common 120-bass accordion and through to large and heavy 160-bass free-bass converter models.

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