In 1974, Tzion joined the Israel Defense Forces as a soloist in the Israel Army Rabbinical choir.

At the age of 14, Bell appeared as a soloist with the Philadelphia Orchestra conducted by Riccardo Muti.

Nathaniel's story has become a beacon for homelessness and mental health advocacy throughout the United States, as told through the book and the movie The Soloist, but I became his friend, and I became his violin teacher, and I told him that wherever he had his violin, and wherever I had mine, I would play a lesson with him.