Some of the student emcees of First Wave, at its core a bridge between academics and the arts, are putting on an end-of-semester hip-hop show at the Rathskeller on Saturday, Dec. 5. Their efforts are two-fold: theyâ??re using their music as a vehicle for academic inquiry, and theyâ??re also giving Madisonâ??s off-campus hip-hop scene a shot in the arm.