 These are not just the dull, thud-producing instruments which Glennie plays now. Many are precisely tuned to scholar instruments like xylophones and marimbas, bells, and so on. They require a wide range of musical understanding and physical coordination to master. Evelyn has been in love with the marvelously diverse members of the percussion family since she was a tiny girl. But there's another memory, another scene from her childhood, which haunts her to this day.