Weddingbee boards

In your case, I think a lot of different instruments could work. I would consider guitar, violin and flute. I'm not a harp person either! ;)

We're having a violinist play during our ceremony, and I am sooooo excited about it! I know it will be unique and beautiful.

IMO, a harp is not the right instrument for your ceremony site.  Doesn't blend with concrete!

What about a flute?  A more folksy portable instrument seems more fitting for city square.  Flutes are magical and you would only  have them play when you walk down the aisle.  Greensleeves is a traditional flute piece and a HS talented kid would be happy to make a hundred bucks to show up and play.  I would really trust a talented HS student.  Or maybe the music teacher wants to make alittle money.

Ifyou go w/ a kid you may want to speak to their parent also to make sure it's OK and that the kid has transportation.  Kids usually like to travel in pairs so you may ask if s/he wants to split the fee.  They know their ability.  Take their word.  Trust the teacher's recommendation.

Make sure you say what you want them to wear.  White shirt and black pants?  Khaki's?  Some schools have inhouse tux's, although probably not suitable for your style of wedding.

What style of dress willyou wear?  Your hair?  Your veil?  The  music really should go with your style. 

Do you have friends who play a guitar?  that's also an option.  Pole both your friends and see what comes  up.  Get the word out there you are looking for musicians.

The best thing about a classical guitarist is that they can play pre wedding music too.  I like that.  You're on the right page.  I think you just need validation for your ideas.  Go with your intuiton for how you see the day.

Try Craig's list, too, yes.  And the officiant.  They know alot of people.

Make your decision and feel good about it.  No one needs to know what your options would have been.