Son Cubano

Son cubano is in 4/4 at 100-130 BPM, organized around the son clave — a 2-3 (or 3-2) rhythmic pattern that every other instrument anchors to. The traditional sexteto / septeto format includes tres (a Cuban guitar with three doubled string courses), Spanish guitar, double bass, bongos, claves, maracas, and vocals; the trumpet was added in the 1920s. Bass plays the anticipated tumbao, hitting on beat 2-and and 4. The song structure has a verse section (largo or canto) followed by a montuno — a vamping call-and-response section with chorus and improvising soloist — that is the genre's structural innovation and the model salsa later inherited.

Son developed in the late 19th century in the Oriente region of eastern Cuba (Santiago, Guantánamo) as a fusion of Spanish guitar-song traditions with Bantu-Congolese rhythmic concepts brought by enslaved Africans. By the 1920s it had moved to Havana with rural migrants; Sexteto Habanero's 1925-28 recordings codified the urban form, and Septeto Nacional added the trumpet in 1927. The genre dominated Cuban popular music through the 1940s. Arsenio Rodríguez, a blind tres player and bandleader, expanded the format in the 1940s — adding piano, congas, and a second trumpet, and writing the riff-based mambo sections that would later define mambo and salsa. The Buena Vista Social Club's 1997 album reintroduced 1940s-50s Cuban son veterans (Compay Segundo, Ibrahim Ferrer, Rubén González) to a global audience.

Find the clave first — the 2-3 son clave is the genre's organizing principle, and once you hear it you can hear everything else aligning to it. Listen for the tres — the Cuban guitar with doubled string courses, played with rapid arpeggios and counter-melodies rather than block chords. The bass anticipates beat 1 by hitting on the prior "and." The song transitions from the verse section to the montuno, where a sonero improvises lines over a fixed chorus refrain.

Ibrahim Ferrer's "Dos Gardenias" (Buena Vista Social Club, 1997) is the most-heard son single in non-Cuban contexts. For a deeper album, the Buena Vista Social Club self-titled album (1997) or Arsenio Rodríguez's Sabroso y Caliente (1950s recordings, compiled).

The Buena Vista Social Club name comes from an actual members' social club in Havana's Buenavista neighborhood that operated through the 1940s; by 1997, when Ry Cooder and Juan de Marcos González convened the recording, the original building had been closed for decades and many of the participating musicians had left music entirely — Rubén González reportedly hadn't owned a piano in fifteen years.