The adjective strophic describes a poem that uses the same structure for all its stanzas — the same rhyme scheme, meter, and number of lines. A song is strophic if all its verses are sung to the same musical melody.
In modern poetry, a strophe is a stanza — a block of lines having a particular rhythmic and rhyming pattern — that is repeated throughout. Strophic poems, such as ballads and sonnets, are arranged in this way, with repeated structural units. Strophic songs, such as hymns and many folk songs and children's songs, have verses that are sung to the same music, although the words change with each repetition. Many pop songs are also strophic.