You can also pick up a smattering of spanish at learnspanish.com . They teach it beautifully. Also at BBC's spanish learning site which you easily search for. I taught myself un poco ( a little ) and it does enhance your enjoyment of the music, I guess. By the way, one of the most common things they sing about is the music itself! They talk of the rythmn, the enjoyment of it, the instruments, about where salsa is danced.. and each group or singer has a signature line or phrase. There are of course more romantic ones that have a story of heartbreak and so on. Es mucho facile!
mala