Here is an interesting 45 by the Ray Rivera Orchestra on MGM, "Guava". It is an organ-led tune that has a solid drum beat with some nice conga playing over it. There is also plenty of bass and a guitar that occassionally throws out real nice wah-wah. Definite late 60s sound and a quality tune.
This is the kind of sound I like from the 60s: an intermingling of sounds that leads me to believe that mixing styles can be a good thing, when done right.