Possible Clues:

• Muse of lyric poetry and music in Greek mythology
• Music Muse
• Sister of Clio
• Muse featured on Chopin's grave monument
• The Muse of music and lyric poetry
• Goddess in bad repute after end of battle
• Muse of ill repute last to leave
• In Greek mythology, the Muse of lyric poetry and music
• Divine female's initially extremely bad repute
• Muse of music, in Greek myth