Whether the music is
with or without masks and/or with or without pandemics frankly I think it's kinda dumb having live music playing inside a supermarket. They could have just as easily been outside near the entrance with the holiday money collectors. I guess they wanted everyone to be in the Pandemic Spirit.
Not sure how it would help sales. Aside from that,
IMO that particular Winn Dixie is the worst of them in the area and we try to generally avoid it anyway. It reminds me of an oversized 7-11 or CVS. The one in Pinellas (and Lady Lake) is so much nicer, bigger and usually is much better stocked.