Thank you for this OP. My gf loves dueling pianos. Any suggestions?
Jive and Wail is real fun but it is all the way out in Wesport Plaza in Creve Coeur (more than a 20 minute drive from downtown). I think there is another one in BPV which is sponsored by Budweiser. I think you are required to drink at least two AB products while you are there and they only allow you to sing songs about AB products. Never been there.
I know this is not what you are asking but BB"s is a cool Blues Bar right down on Broadway that has live jazz.