After three years, at the age of 12, he lost all interest in religion, and at the crucial moment, he refused to go ahead with his bar mitzvah and make a formal commitment to Judaism.

Source: https://time.com/6549001/einstein-judaism-zionism-essay/

Both are Jewish and Ms. Hirsh said seventh grade was bat and bar mitzvah season.

Source: https://www.nytimes.com/2023/09/22/style/kim-hirsh-jonathan-fingerhut-wedding.html

The boy was musical in general; he wrote a 10-part symphony for the school orchestra at the age of 10, and performed on the piano at his bar mitzvah – but noises would also tumble out, a cascade of unfiltered mimicry.

Source: https://cyprus-mail.com/2023/04/05/performer-enraptured-by-the-magic-of-music-and-making-noises/