Theory:

But Evelyn was not going to give up. She was determined to lead a normal life and pursue her interest in music. One day she noticed a girl playing a xylophone and decided that she wanted to play it too. Most of the teachers discouraged her but percussionist Ron Forbes spotted her potential. He began by tuning two large drums to different notes. “Don’t listen through your ears,” he would say, “try to sense it some other way.” Says Evelyn, “Suddenly I realised I could feel the higher drum from the waist up and the lower one from the waist down.” Forbes repeated the exercise, and soon Evelyn discovered that she could sense certain notes in different parts of her body. “I had learnt to open my mind and body to sounds and vibrations.” The rest was sheer determination and hard work.
Explanation:
  
xylaphone.jpg
Xylophone
 
Though things looked difficult and dark for Evelyn, she did not give up. She wanted to live like a normal person. She was interested in music, and she wanted to follow her dreams. She saw some girl playing an instrument calledxylophone(a musical instrument played by striking a row of wooden bars), and she wanted to learn it. Her teachers discouraged her because she cannot hear what she is playing nor what she is taught. But a percussion (musical instrument which can be played by striking with hands or sticks) instrument player named Ron Forbes spotted her talent and encouraged her. He saw the interest and talent that Evelyn had. He advised her to listen through her body parts, and not through ears. He started teaching her by tuning two drums for different notes. She started "feeling" the music. She felt the higher drum from her waist up and the lower drum from her waist down. Her mind and body now received the sounds and vibrations. She worked hard with nothing but determination to reach where she is today.
 
Meanings of difficult words:
 
No.
Word
Meaning
1
percussionmusical instrument that is played by striking with hand or sticks
2
xylophone a musical instrument played by striking a row of wooden bars
3
pursuefollow or chase
4
sheernothing other than
Reference:
National Council of Educational Research and Training (2006). Beehive. Evelyn Glennie Listens to Sound without Hearing it- Deborah Cowley(pp. 17-20). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.