I'll be traveling with two sons, 17 and 19. Will they be able to go into a bar with us if they don't order alcohol?

I do not know. But I would bet they would be allowed at tables by the bar, just not belly up to the bar. Like I said, I do not know.

A lot of places "card" at the door

Depends on the bar. Most bars double as eating establihsments and they can. After hours some bars start to card, though.

If it's a restaurant with a bar, of course you can sit at a table. Doubt they will let thme sit by the bar.

If your mean a place that's primarily a bar - it depends on the place. If it's more like a club, probably not (they'll card at the door). If it's more adult/upscale they might - but I wouldn;t count on it. (No one wants to take the chance to lose their liquor license.)

Some comedy clubs and music venues have special early shows where you can bring kids.

Thanks for the responses. I guess I was thinking primarily of bars that have live music. I know my boys would enjoy doing something like that, but I noticed the Pianos website said 21+ for all shows.

Any other suggestions?

We took our kids to Smoke to see music a couple of years ago, they were probably 15 & 17. We paid the cover, they drank Cokes or something and there was not a problem. I think it will always depend on the venue. Try looking to see who is playing during the time you are there and then make some calls to places to see what their policy is regarding minors in the company of adults.

Smoke is on Broadway bet 105 & 106

http://www.smokejazz.com/

Ditto Cleopatra's Needle (90th & Broadway). Good Jazz, decent food, encourage a family atmosphere. Music starts at 8. They have a website.