What literary devices are used in the poem locket by Amy Ludwig Vanderwater?

The poem "Locket" by Amy Ludwig Vanderwater uses imagery to evoke sensory experiences, such as the description of the locket as a "tiny song." It also employs personification by giving the locket human-like qualities, such as a heart that beats and a voice that whispers secrets. Additionally, the poem utilizes symbolism, with the locket representing memories and emotions that are kept close to the heart.