Evelyn sensed the sounds and vibrations of the music through her body and her senses. This is explained in detail in Chapter 2 of the NCERT Solutions for Class 9 English, "The Sound of Music."

Sensing the Sounds and Vibrations of the Music

Evelyn, who was deaf, was able to sense the sounds and vibrations of the music through various means. These included:

1. Feeling the vibrations: As the music played, Evelyn could feel the vibrations of the sound waves through her body. This allowed her to sense the rhythm and beat of the music.

2. Observing others: Evelyn also observed the other people around her who were dancing and moving to the music. She could see the joy and energy in their movements, and this helped her understand the mood and feeling of the music.

3. Using her imagination: Even though Evelyn could not hear the actual sounds of the music, she was able to imagine what they might sound like based on her other senses. This allowed her to create her own unique interpretation of the music.

Overall, Evelyn's ability to sense the sounds and vibrations of the music was a testament to the power of music to transcend language and communication barriers.