I have used three muses: Euterpe (Music) represented by the harp; Melpomene (Tragedy) represented by the violin, and Thalia (Comedy) represented by the flute. In the Greek viewpoint, tragedy and comedy were two sides of the same coin. I've tried to bind them together with the muse of music.
Border: Design from Robert Owen, The Grammar of Ornament, pl. XIX (London: Day and Son, 1856).
Art: Detail of John Singer Sargent's Apollo and the Muses (1921). Rotunda mural at the Museum of Fine Arts, Boston. Public domain.
The YNMF 2010 "Pegasus" Medallion, designed by Joseph Dillon Ford, is based on the reverse of a silver stater coin (345307 BCE) minted at Corinth c. 330 BCE.