Big Sam’s Funky Nation is bringing its raucous, brass-fueled funk to San Antonio as a headliner for the 40th annual Jazz’SAlive, scheduled for Sept. 29-30 in Hemisfair’s Civic Park. The New Orleans-based group is known for working from an eclectic sonic palate that includes not just the jazz and funk of its Big Easy roots but also rock, hip-hop and more.