Answer:
The incident of the music playing through the barrack is Juliek's final 'show', playing Beethoven's concerto with his violin which is his most treasure possession that he even brought with him in the concentration camp at Gleiwitz.
Juliek, through his music, becomes the symbol of renewal, hope and resistance against the Nazi's discriminatory acts against the Jews.
Explanation:
This incidence from page 94 of Eliezar Weisel's memoir "Night" shows the scene of a beautiful sound emanating amid the death that consumes the whole barrack. Elie mentions this particular incident to show the small flicker of calm and beauty during the time of death and sorrow.
After the prisoners arrived in the camp at Gleiwitz, the Nazi officers huddled them into barracks, over-crowded but much better than the snow-clad outside atmosphere at the night. Amid this confusion, suffocating and death infused atmosphere inside the room, Elie heard the sound of a violin playing in one corner of the room. He could only imagine it to be Juliek, <em>"The boy from Warsaw who played the violin in the Buna orchestra..."</em>
The boy showed his sacrifice and dedication to his music, for even Elie <em>"thought he'd lost his mind" </em>that he was thinking about his violin when everyone's main concern is to live. But Juliek provided a break through his music from the distressing and disheartening scene of the room where <em>"the dead were heaped on the living"</em>. He symbolizes the renewed hope for survival among the holocaust prisoners, providing a ray of hope for the future and also a source of resistance during such depressing and discriminatory conditions. Juliek's choice of Beethoven's concerto also represents hope, which he wasn't able to play during his musician days. His decision to play even though circumstances are hard shows his perseverance, his way of resisting the oppressive nature of his surrounding. Even in the face of death, he was brave and strong enough to play his music.