Mythology & Beliefs: Erato In Greek and Roman Mythology, Erato was one of several Muses.
Erato in Greek and Roman Biography and Mythology
（Ἐρατώ), a nymph and the wife of Areas, by whom she became
the mother of Elatus, Apheidas, and Azan. She was said to have
been a prophetic priestess of the Arcadian Pan. (Paus. 8.27.9;
ARCAS.) There are two other mythical personages of this name,
the one a Muse and the other a Nereid. (Apollod. 1.3.1, 2.6;
Hes. Th. 247.) - A Dictionary of Greek and Roman biography and
mythology, William Smith, Ed.
Erato in Wikipedia
In Greek mythology, Erato (Ἐρατώ) is one of the Greek Muses.
The name would mean "desired" or "lovely", if derived from the
same root as Eros, as Apollonius of Rhodes playfully suggested
in the invocation to Erato that begins Book III of his
Erato is the Muse of lyric poetry, especially love and erotic
poetry. In the Orphic hymn to the Muses, it is Erato who
charms the sight. Since the Renaissance she is often shown
with a wreath of myrtle and roses, holding a lyre, or a small
kithara, a musical instrument that Apollo or she herself
invented. In Simon Vouet's representations
(illustration), two turtle-doves are eating seeds at her feet.
Other representations may show her holding a golden arrow,
reminding one of the "eros", the feeling that she inspires in
everybody, and at times she is accompanied by the god Eros,
holding a torch...