found: New Grove dict. of musical instruments(Accordion: a portable instrument of the reed organ family, classified as a keyed free-reed aerophone)
found: M. Shagudzhev, 1965:label (garmon) (OCoLC)863636844
found: Grove music online, March 8, 2021:Garmonik (variants, garmoshka, garmonya; piano accordion of Belarus)
found: Garland encyclopedia of world music online, March 8, 2021:Russia (diatonic button accordion (garmon, garmoshka, garmonika) Georgia (the accordion, garmon, also buzika, from muzika 'music')
