Choral poetry is a type of lyric poetry that was created by the ancient Greeks and performed by choruses (see Greek chorus). Originally, it was accompanied by a lyre, a string instrument like a small U-shaped harp commonly used during Greek classical antiquity and later periods. Other accompanying instruments in later years included other string instruments such as the kithara, barbiton, and phorminx, as well as wind instruments such as the aulos, a double-reeded instrument similar to an oboe. These are commonly known subgenres for choral lyric poetry: And in later years: