What are the nine muses and departments?

Calliope - Muse Queen and of Epic or Heroic Poetry Clio - Muse of History Erato - Muse of love and erotic poetry and of marrige songs Euterpe - Muse of music and lyric poetry Melpomene - Muse of tragic poerty and tragedy Polyhymnia or Polymnia - Muse of sacred songs, lyrics and singing Terpsichore - Muse of choral music and dance Thalia - Muse of comedy Urania - Muse of astronemy