As late afternoon turned to dusk on an October day in Madison, Tony Casteñeda settled into his Thursday evening routine. It involves jamming along on the bongos and congas in the back room of the Cardinal Bar with the five-piece Latin jazz band he leads, the Tony Casteñeda Latin Jazz Band. Thursday is Latin music night at the Cardinal, and keeping rhythm on the drums, Casteñeda’s hands bang away to the Afro-Cuban rhythms while the rest of the band creates an excitingly smooth and exotic sound, bringing the genre of Latin jazz to Madison.