Ode (from the Ancient Greek ὠδή) is a type of lyrical verse. A
classic ode is structured in three major parts: the strophe, the antistrophe, and the epode. Different forms such as the homostrophic ode and the irregular ode also exist. It is an elaborately structured poem praising or glorifying an event or individual, describing nature intellectually as well as emotionally.
Greek odes were originally poetic pieces accompanied by symphonic orchestras. As time passed on, they gradually became known as personal lyrical compositions whether sung(with or without musical instruments) or merely recited(always with accompaniment). For some, the primary instrument of choice was either the aulos or the lyre (the latter of which was the most revered instrument to the Ancient Greeks). The written ode, as it was practiced by the Romans, returned to the lyrical form of the Lesbian lyricists.
There are three typical forms of odes: the Pindaric, Horatian, and irregular. Pindaric odes follow the form and style of Pindar. Horatian odes follow conventions of Horace; the odes of Horace deliberately imitated the Greek lyricists such as Alcaeus and Anacreon. Odes by Catullus, as well as other poetry of Catullus, was particularly inspired by Sappho. Irregular odes are rhyming, but they do not employ the three-part form of the Pindaric ode nor the two- or four-line stanza of the Horatian ode.