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Range of xylophone marked on keyboard.svg Author real name Artur Jan Fijakowski pl WarX commons WarX mail mailto warx gmail jabber WarX jabber org irc irc freenode net Skala ksylofonu zaznaczony na klawiaturze fortepianu Range of xylophone marked on piano's keyboard WarX Tessitura Musical keyboard diagrams Black green white Xylophones