Lived there from early 1960's until 1989.
My sister, in-laws, and friends still live there.
Read these:
http://blog.nola.com/keithspera/
Look here:
http://www.nola.com/music/
using the search bar and WHERE you'll be.
Some places are "safer" than others(NOLA is number one in homicides per capita), I no longer go to French Quarter events or anywhere CBD(central business district) but it's your call.
Jazz:
Preservation Hall one is usually good, the one at the top of this page looks good:
http://www.nola.com/music/index.ssf?...nge=7&x=32&y=9
Be safe and have fun.
If you like burgers, The Swamp Room is the best for decades.
http://cityguide.aol.com/neworleans/...om/v-105672084
A great "pick up a Po-Boy"(large sandwich on REAL French Bread) place is 2 blocks from where I used to live and named Come Back Inn:
http://cityguide.aol.com/neworleans/...+Orleans%2C+LA
Enjoy, be safe, and have a great trip.