Well, luckily, you are close enough to the action.
Just grab a cab and ask the driver to take you to
Lincoln Road and Washington - and start walking west. It is the place to go for walks and all kinds of restaurants and shops. Sadly, there is no live music around - maybe a street musician or two.
That day I happen to be playing a few blocks away, at Jazid (
www.jazid.net) but we start at 12:30 am, and it is a 21+ bar.
Then there is Ocean Drive, a few blocks away from Lincoln Road, but that's where the chaos is. More restaurants and a colorful walk, though. There are two bars with live music, but mostly Top 40, and all are 21+.