Super obscure New York Latin Jazz produced by Eddie Drennon who had a massive Disco hit in the early 1970's with "Let's do the Latin Hustle"but was also a well known arranger and producer on the underground Latin Circuit. 

Way out on the leftfield of the typical "Salsa" style release current at the time. Some very jazz oriented playing on top of the "El Barrio" sounds of the streets and funky fiery latin percussion all the way.
Very different from the usual run of the mill late 70's Fania outings which might be a clue as to it's somewhat unique sound stylings. Funky, gritty, jazzy and spooky backing vocals.