Fredericton puts on a annual Harvest Jazz and Blues Festival 2nd week of September.  Check the link for details,

.

Last year was our first and this year's festival has kicked off with some great weather and amazing performances. It there are any jazz and blues fans out there I would consider coming to Fredericton to soak in the atomosphere and the shows. There are lots of concerts with world reknown jazz / blues muscians and the downtown area is changed to a huge venue with many free stages. You can enjoy the music just walking around.

.