What to wear to st martins in the field?

[carries]

Going to London on sleeper from glasow tomorrow evening and staying 2 nights. DH and I are celebrating our 10th wedding anniversary. DH has booked tickets to Eine Kleine Nachtmusik at st martins in the field, but I don't know what to wear. Am a Sahm and don't do glam, though am smart(ish). Help o founts of all wisdom! :)

something smartish, but not too formal - stick a nice jacket over the top of trousers and top?
(DH and friends play in this group )

Honestly you can wear absolutely whatever you like to a classical concert.
Wear whatever you feel good in as it's a special occasion but don't worry about having to keep up any appearances whatsoever. You will find other members of the audience in anything from jeans to suits.

Agree with Katisha.

Wear something you feel good in as there will be a whole host of outfits on display there.

Thanks folks. That's reassuring. Will pack a skirt, vest top and cardi.