My friend (a different one) is going to a legit music conservatory for vocal performance in opera.
I recorded her singing "O Del Mio Dolce Ardor" and put it to a trance background! :D

All I had was her solo part, and the sheet music for a very simple piano accompaniment. The whole intro and most of the extra sounds/harmonies were composed by me. Christoph Willibald von Gluck is probably turning in his grave.