Answer:
Pindaric
1 A ceremonial poem attributed to an ancient Greek poet from the 5th century BC.
2 A poem characterized by a three-part structure: a strophe, an antistrophe, and an epode.
Irregular
1 A poem lacking a fixed structure and open to creative expression.
2 A rhymed ode that does not conform to a specified number of lines in each stanza.
Explanation:
Pindaric or Pindaric ode is named in honor of the esteemed Greek poet Pindar, recognized as one of the greatest lyrical poets. Pindar lived in approximately the 5th century B.C. Pindaric odes consist of three segments: 1 strophe, antistrophe, and epode. The strophe and antistrophe share the same meter and length; whereas the epode possesses a distinct meter and length.
Irregular Odes incorporate some traditional elements (typically tone and subject) from classic odes (whether Pindaric or Horatian), while allowing for innovation in rhyme and structure.
Additionally, there's a third category of odes called Horatian ode named after Roman poet Horace. This type follows a rhythmic stanza format. Horatian odes typically lean towards reflection and are composed for personal enjoyment, contrasting with Pindaric odes.