Teen Gothic

Hello, i love this band and the song by O children, the disco dancer death and im really curious about what is that instrument used in the very beggining and throughout the song, it sounds like a crystal or something. I want to start making music and id like to include that instrument, anyone know the name ?

I'm looking for goth songs or band that have/use brass instruments. I just know "The Passenger" by Siouxsie and the Banshees and "A Night Like This" by The Cure.