Click here for a page of Cuban MIDI files, including "Cumbanchero." Oh, so THAT's the tune. It's not what I was thinking of.
Here is a page of "Latin" MIDI's.

Arma virumque cano, Trojae qui primus ab oris
Italiam fato profugus Laviniaque venit
Litora -- multum ille et terris jactatus et alto
Vi superum, saevae memorem Junonis ob iram,
Multa quoque et bello passus, dum conderet urbem
Inferretque deos Latio -- genus unde Latinum
Albanique patres atque altae moenia Romae.

Oh? Not THAT Latin, huh?

---

The All-Music Guide has only a brief biography of Hernandez:

An early émigré to East Harlem from his native Puerto Rico, Rafael Hernández did much to develop the Latin musical community in America during the 1920s and '30s, both through his popular songwriting and his leading of a renowned string quartet. His compositions, including "Lamento Borincano," "Amor Ciego," "El Cumbanchero," "No Me Quieras Tanto," "Cachita," and "Silencio," have been recorded by many Latin artists throughout the years: El Gran Combo, Trío Matamoros, Pedro Flores, Tito Puente, Ernesto Lecuona, Daniel Santos, Xavier Cugat, and Pérez Prado.

No dates of birth or death shown.

-Joe Offer-