The seguidilla is a verse form of Spanish in origin. It has seven syllable-counted lines (7,5,7,5,5,7,5), and rhymes the second and fourth, and the fifth and seventh lines (x,A,x,A,B,x,B).
Example
So quiet now, the ripples lapping on the shore scarcely disturb the silence - a whisper, no more. But who knows the power the growing breakers may have in another hour?References
Seguidilla (poetry) Wikipedia(Text) CC BY-SA