If you booked directly with them then they shoud be your first call to see if they offer a refund or perhaps another date maybe in a year or so when you are able to travel.

Upper deck, if it’s open. There are speakers all around. When we attended , it rained heavily, so it was closed. The stage is on the lower deck in the center on the left side of the boat.

You can book a table and you can have food or just drinks, we found this one of the best nights of our stay

I don't know, but you can contact the Jazzboat directly from their website to ask.

Yes you just pick your table online

Yes you can

We listened to a jazz guitarist. He was terrific. But there’s all types of music. Just check out their website to see who’s playing. As I recall their website gives you info on the type of music. If you want to know then google the artist. You’ll get even more info. That’s what did.

They do not have an specific dress code, you can go casual or smart casual. Last time I went, I was wearing jeans and winter boots. No need to go fancy! :)

Same as above.