Labels:book | bulletin board | crt screen | earth | monitor | sky | stairs | trade name | window | windowpane OCR: Mozart32 [bachtpi1 mz] 60 x View Item Layoub MopuM Help p PPP This Bach two- p art invention plays nicely It illustrates clef changes. which are Two Part Invention in F followed by invisible beT lines Johan Sebastian FOT Help press F1 Bar 1 Prt 1 Stv 1 Ln1 Pg1 Layout ffffff very anges automatically Bar1