hi, im just trying to refine my definition for these different styles. i have heard now so many times, that salsa and son are the same. salsa comes from son etc.... and just the other day, my dance instructer mentioned that chachacha really is Son which has made my head spin somewhat. to put it simply, my own distinction between salsa and chachacha, lies pretty much in the speed of the song, if its way too slow to be salsa then its probably chachacha.. and if its quite slow and with more guitar based instrumentation then its probably Son. likewise one can feel the rythem and tell which dance lends itself better, but thats too vague for me. im sure theres a better way to tell.. for example, if the clave is the signature in salsa, (that is to say even if its only there in spirit), so... is this what sets salsa aside from the others? and if so what signature sounds are there to tell me if its, Son or Chachacha? also. can i dance Son to a chachacha song? or am i commiting some kind of dancefloor blasphemy ? here are just a couple of songs that currently represent a grey area for me: polo montañes - un monton de estrellas (salsa or son?) orquesta tabaco y ron - guajira (son or chachacha?) guantanamera - chachacha or son? then there are those songs that contain the lyrics to the effect of "this is Son!" "you are listening to Son!" but , still sound rather like salsa to me because they have an uptempo beat that fits well with salsa moves. such as cubanoson - cubanoson clave cubana - dicen que el son my final question : can a song be both or all three at the same time?