What about something by the pop band My Bloody Valentine?
That remembers me what happened once to a friend, when we were in high school. He had a date, and recorded to her a tape with some musics. Among those, he unfortunately choose a nice song by The Kinks, that opens with the lyrics: "Set me free, little girl".
Last but not least, some Stockhausen would be probably a hardcore choice. And if the girl like it?

Best!