I remember a musician playing at lunch last year.....is there still live music at Fish Tale Grill?

Yes

The night we were there, a gentleman was providing live music. Sorry, but cannot remember what night of the week it was.

We arrived just before closing, owner or manager was nice to US, let us in and dined in, we didn't see a live band.

I believe on weekends a musician plays a keyboard outside

Not when I dined, it was evening and dinner service, maybe for lunch?