Woodcut showing Pythagoras with bells, a kind of glass harmonica, a monochord and (organ?) pipes in Pythagorean tuning. From Theorica musicae by Franchino Gaffurio, 1492 (1480?)
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{{Information |Description= Woodcut showing Pythagoras with bells, a monochord and (organ?) pipes in Pythagorean tuning. From ''Theorica musicae'' by Franchino Gaffurio, 1492 (1480?) |Source= http://www.chmtl.indiana.edu/tml/15th/GAFTM1_02GF.gif |Date= 14
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