I have a female friend whose mother passed away last week. The friend is scheduld to get married next week, two days after the end of the shiva. Are there any restrictions or special rules in such a case?

During the wedding she is allowed to dance and listen to the music. The same applies during the week of Sheva B'rachot. After that week she will complete her "Shloshim". It is best for her to consult the Rabbi who is marrying them for full details. Mazal tov and may she know of only semachot.