Claim: Some poems in the Alcmanian system, which were composed by Horace, include Odes I.27 and I.28.
Evidence: Horace composed some poems in the Alcmanian strophe or Alcmanian system, a couplet consisting of a dactylic hexameter followed by a dactylic tetrameter a posteriore (so called because it ends with a spondee, thus resembling the last four feet of the hexameter). Examples are Odes I.7 and I.28, and Epode 12 ("Quid tibi vis, mulier nigris dignissima barris?