The lyre is a stringed musical instrument well known for its use in classical antiquity and later. The recitations of the Ancient Greeks were accompanied by lyre playing. The lyre of Classical Antiquity was ordinarily played by being strummed with a plectrum, like a guitar or a zither, rather than being plucked, like a harp. The fingers of the free hand silenced the unwanted strings in the chord. The lyre is similar in appearance to a small harp, but with certain distinct differences.
A choir, chorale, or chorus is a musical ensemble of singers. Choral music, in turn, is the music written specifically for such an ensemble to perform.