According to the Music Director's note all children should wear:
- black socks
- black shoes or boots
- white shirts or sweaters
- black dress pants (or long black skirts for girls)
- a long black tie for boys
At the PTA meeting administration representatives mentioned that black dress alone (without white shirt) is also appropriate for the girls, as long as they don't wear any other colour. However, they wanted to verify this information and send the update / clarification later through the class parents. Not sure what happened here, we did not get any updates so far.
UPDATE: boys are NOT required to wear black ties, and girls are allowed to wear black dresses without white shirts.