<human>: Summarize the given text in a few sentences.

Obviously a throw away account here (sister is on reddit).

So. I am getting married in less than a month and I asked my sister to make two playlists (one for eating, one for dancing) from songs we (my fiancee and I) already chose. 

First, she changes it from using an ipod (with the playlists already on there) to using a netbook (not hooked up to the internet, so no one can put a different song on). Not a big deal.

However, I wake up this morning with two screen shots from her (one of each playlist) in an email. After looking them over with my fiancee, we noticed that she included songs (that we never heard of), and kept a total of 8 original songs from both play lists. 

(Small rant: She got rid of all slow songs but one. She added songs I despise with a passion (anything from Grease, & Cyndi Lauper. She did this without asking. She said she changed everything because the rhythm didn't flow. And in her exact words "i'm keeping it *exactly* the way it is. you put me in charge of music after all. " GAHHHHHH XC)
 
We (he and I) spent hours going over these songs, consulting with his side of the family, and the church, to know what would be fine for the wedding. (Small note, this is one of the things he wanted to have input in.)

I sent her an email for her to go back to the original songs, and that if she wanted to add some, she could, if she asked first. That she wasn't "in charge of the music" (as she put it), but was doing this as a favor for us. (We could do it, but we are working on the (homemade) programs, favors, etc).

How can we get her to change it back to the original song list? (We wrote her, saying she could add songs (but do not omit the ones we already chose) if she would just ask us. Should I just do it myself?
<bot>: We(my fiancee and I) are a tad annoyed with my sister; she changed my whole reception playlist, without asking. It is three weeks til I get married.