Alvin Medina

Cuatro puertorriqueño refers both to the Puerto Rican 10‑string, five‑course "cuatro" and to the instrumental and song repertoire built around it in the island’s jíbaro (rural) tradition. Characterized by bright, bell‑like timbre, virtuosic melodic runs, and danceable, syncopated strumming, the style drives forms such as seis, aguinaldo, mapeyé, and danzas jíbaras. Ensembles typically feature cuatro as lead, supported by guitar, tiple or bordonúa, and güiro, with occasional bongó or maracas. Harmony is diatonic and major‑leaning (I–IV–V with secondary dominants), while rhythms often alternate between 2/4, 3/4, and 6/8, creating a buoyant lilt ideal for festive parrandas and community dances. Beyond its rural roots, the cuatro has become a national symbol, bridging folk and popular music; modern players fuse it with bolero, salsa, and jazz while preserving the poetic décima tradition.