semi formal?

[thescot]

Well there is no accounting for tastes, just because something can be done does not mean that it should be done.

De gustibus non disputandum.

[davedove]

Quite probably, if you wore a sport jacket and tie, you would be the best dressed guy there. Heck, you're in Texas, you should wear your jeans, boots, and hat.

Now, if you want to dress up, go for it. You'll outshine everyone there and maybe a few will get the idea.

[Bob C]

It depends, in part, on the venue. I saw Lord of the Dance in a college gymnasium.

Even semi-formal would have been a bit much there.