Before anyone says "Calabria" or anything with the same sax riff in it, it's not that!
It's probably in 4/4 time. It's not necessarily Spanish (it's a hispanophone song but it could be Latin American). It's probably quite recent as it comes on in a lot of the clubs in Málaga. I have no idea of the lyrics except that the song (especially the part where the sax comes on) is mostly in a minor key. It goes up in key each verse, then comes down again. I think it's the chorus where the sax comes on. Someone's singing over the sax, a male. (I think just before the chorus starts) as he says something that sounds like "son los motivos", all of the music dies out leaving only the percussion and bass, and there's a beat for each syllable of whatever he says (each of those words takes up one beat).
I know I'm not doing a great job of explaining, try asking some questions and I'll see if I can answer!
Graciaaaas