Just remember to pronounce Burgundy St as Bur-GUN-dy. & in the Faubourg-Marigny, where the Frenchman St strip is, it's fine to walk alone after dark as long as you're not stumbling and have your wits about you. The Spotted Cat is one of my favorite venues period, though DBA across the street books arguably higher profile acts.
Food: Katie's in Mid City, around the corner from Liuzza's. Go to both! Katie's served me a crawfish savory beignet last October and I'm still a little full. Breakfast-wise, you can't go wrong with the Ruby Slipper. Po boys, I like Johnny's in the Quarter and Cooter Brown's on the west side; the latter is also loaded with beer taps and gargantuan oysters. For oysters closer in, Acme is well-known but I'm a fan of Felix's up the street from there.
If you end up in the Irish Channel / Garden District area, I'm fond of Tracey's a number of things, po boys not least among them, and there's breakfast up and down Magazine St.