The Muses in Greek Mythology

The Nine Olympian Muses

-The most familiar of muses

Name Art Symbol Meaning of Name

Calliope (Καλλιόπη)

heroic poetry

tablet and stylus; sometimes scroll 

"beautiful voiced"

Clio (Κλειώ)

epic poetry or history

scroll or open chest of books

"celebrating"

Erato (Ἐρατώ)

love poetry

lyre

"awaking desire"

Euterpe (Εὐτέρπη)

music, lyric poetry

flute

"well pleasing"

Melpomene (Μελπομένη)

tragedy

tragic mask, club of Heracles, sword

"singing"

Polyhymnia (Πολυύμνια)

sacred poetry

no symbol; represented in a pensive posture

"many hymns"

Terpsichore (Τερψιχόρη)

choral song and dance

lyre 

"dance enjoying"

Thalia (Θάλεια)

comedy

comic mask, shepherd’s crook, wreath of ivy

"flourishing"

Urania (Οὐρανία)

astronomy

staff pointing to a globe

"heavenly one"

Other Lists of Muses

The Three or Four Titanian Muses

--According to Pausanias (c. 115–180 AD) 
--According to Cicero

They are said to have been the daughters of Zeus (or Uranus ) and Plusia , hence their name. Plato, on the other hand, groups Hesiod's Terpsichore , Erato , Kalliope and Urania into four numbers. 

The three or four Apollonian Muses

As three Apollonian muses ( Μοῦσαι Απολλωνίδες Moúsai Apollōnídes ) or also Delphic muses three daughters of Apollo were called:

They represent the three strings of Apollo's lyre and are said to have lived on the Helicon . The first sentence of the name goes back to Eumelos of Corinth (seventh century BC),  the second to Plutarch , he also gives a fourth muse:

Nete, Mese, Hypate, as elements of the Tetractys, play an important role in ancient music theory . The fourth was occasionally the paramesis , since the number of strings of the lyre and the music theory based on it were variable.

The seven or nine Pierian Muses

In another tradition there was a group of seven muses, who are said to have been mentioned according to Johannes Tzetzes of Epicharmos (fifth century BC), the so-called Pierian muses or Pierids with the following names: