Seguidilla
A poetic form of a 7-line stanza with a rhyme scheme of; a, b, c, b, pause/end-stop, d, e, d. Rhyme or near-rhyme is okay.  And a syllable count of; 7, 5, 7, 5, pause/end-stop, 5, 7, 5, line format; 1)7a, 2)5b, 3)7c, 4)5b, pause/end-stop, 5)5d, 6)7e, 7)5d. With one assonance rhyme between lines 2 and 4, and again between lines 5 and 7. Pause/end-stopping between lines 4 and 5, wherein, the tone or focus changes.